2013 Sem 1 Midterm Answer Section
... 20. A rock is thrown straight up with an initial velocity of 15.0 m/s. Ignore energy lost to air friction. How high will the rock rise? a. 1.53 m b. 22.9 m c. 6.50 m d. 11.5 m e. 13.6 m 21. A bobsled makes a run down an ice track starting at 150 m vertical distance up the hill. If there is no frict ...
... 20. A rock is thrown straight up with an initial velocity of 15.0 m/s. Ignore energy lost to air friction. How high will the rock rise? a. 1.53 m b. 22.9 m c. 6.50 m d. 11.5 m e. 13.6 m 21. A bobsled makes a run down an ice track starting at 150 m vertical distance up the hill. If there is no frict ...
Physics Review Assignment
... 11. Hercules shoots an arrow straight up with an initial speed of 98 m/s. Nine seconds later its velocity is only 9.8 m/s. At what rate is the arrow slowed down by gravity? (2 marks) ...
... 11. Hercules shoots an arrow straight up with an initial speed of 98 m/s. Nine seconds later its velocity is only 9.8 m/s. At what rate is the arrow slowed down by gravity? (2 marks) ...
Practice Final
... E) none of these 6) How long does it take for a sport car at rest to reach 27 m/s if its acceleration is 9 m/s2? A) 1.0 s B) 2.0 s C) 3.0 s D) 4.0 s E) none of these 7) You toss a tennis ball from the window of you car backwards at 2 m/s. If the car is traveling at 30 m/s, what is the speed of the t ...
... E) none of these 6) How long does it take for a sport car at rest to reach 27 m/s if its acceleration is 9 m/s2? A) 1.0 s B) 2.0 s C) 3.0 s D) 4.0 s E) none of these 7) You toss a tennis ball from the window of you car backwards at 2 m/s. If the car is traveling at 30 m/s, what is the speed of the t ...
Fictive forces
... Let us start our exploration of rotating systems by addressing the motion of a pendulum on the North Pole. You have built a tall tent and hang the pendulum from the top of the tent. The pendulum is started by releasing the pendulum with an initial velocity towards the center of the tent. Seen from a ...
... Let us start our exploration of rotating systems by addressing the motion of a pendulum on the North Pole. You have built a tall tent and hang the pendulum from the top of the tent. The pendulum is started by releasing the pendulum with an initial velocity towards the center of the tent. Seen from a ...
Linear Momentum
... another billiard ball that is at rest, that the two ball system will continue on away from you after the impact. You would be very surprised if one or the other of the balls came back to you (without putting ‘English’ on the ball). What continued to move away from you was the COM of the two ball sys ...
... another billiard ball that is at rest, that the two ball system will continue on away from you after the impact. You would be very surprised if one or the other of the balls came back to you (without putting ‘English’ on the ball). What continued to move away from you was the COM of the two ball sys ...
(2) as compared to (1)
... When the raindrops hit the umbrella, they tend to splatter and run off, whereas the hailstones hit the umbrella and bounce back upward. Thus, the change in momentum (impulse) is greater for the hail. Because Dp = F Dt, more force is required in the hailstorm. This is similar to the situation with th ...
... When the raindrops hit the umbrella, they tend to splatter and run off, whereas the hailstones hit the umbrella and bounce back upward. Thus, the change in momentum (impulse) is greater for the hail. Because Dp = F Dt, more force is required in the hailstorm. This is similar to the situation with th ...
analysing motion - s3.amazonaws.com
... What can you say about the ladder state of motion when a truck moves down the road ? As the truck moves down the road, the ladder moves with it What will happen to the ladder when the truck abruptly stop and the straps were no longer functioning ? Why ? The ladder would slide off the top of the tru ...
... What can you say about the ladder state of motion when a truck moves down the road ? As the truck moves down the road, the ladder moves with it What will happen to the ladder when the truck abruptly stop and the straps were no longer functioning ? Why ? The ladder would slide off the top of the tru ...
Rotational Motion
... rotational velocity of 5 rev/s about a vertical axis. The rotational inertia of the wheel is 2 kg·m2 about its center and the rotational inertia of the student and wheel and platform about the rotational axis of the platform is 6 kg·m2. What is the initial angular momentum of the system? a) ...
... rotational velocity of 5 rev/s about a vertical axis. The rotational inertia of the wheel is 2 kg·m2 about its center and the rotational inertia of the student and wheel and platform about the rotational axis of the platform is 6 kg·m2. What is the initial angular momentum of the system? a) ...
v(t) = v0 + at
... Motion down a ramp 2 (with forces!) Sketch Velocity, acceleration and net force vs. time graphs for the car moving away from the motion detector and slowing down at a steady rate. ...
... Motion down a ramp 2 (with forces!) Sketch Velocity, acceleration and net force vs. time graphs for the car moving away from the motion detector and slowing down at a steady rate. ...
lecture 10
... A particle moving on a plane curve 1 Two particles moving on a space curve and having a constant distance between them ...
... A particle moving on a plane curve 1 Two particles moving on a space curve and having a constant distance between them ...
Chapter 5 Work and Energy conclusion
... THE PRINCIPLE OF CONSERVATION OF ENERGY Energy can neither be created not destroyed, but can only be converted from one form to another. Heat energy is the kinetic or vibrational energy of molecules. The result of a non-conservative force is often to remove mechanical energy and transform it into he ...
... THE PRINCIPLE OF CONSERVATION OF ENERGY Energy can neither be created not destroyed, but can only be converted from one form to another. Heat energy is the kinetic or vibrational energy of molecules. The result of a non-conservative force is often to remove mechanical energy and transform it into he ...
Welcome to Physics I !!!
... • Displacement: Distance from equilibrium • Amplitude of oscillation: max displacement of object from equilibrium • Cycle: one complete to-and-fro motion, from some initial point back to original point. • Period: Time it takes to complete one full cycle • Frequency: number of cycles in one second 95 ...
... • Displacement: Distance from equilibrium • Amplitude of oscillation: max displacement of object from equilibrium • Cycle: one complete to-and-fro motion, from some initial point back to original point. • Period: Time it takes to complete one full cycle • Frequency: number of cycles in one second 95 ...
Tuesday, Sept. 30, 2014
... Work and Kinetic Energy A meaningful work in physics is done only when the sum of the forces exerted on an object made a motion to the object. What does this mean? ...
... Work and Kinetic Energy A meaningful work in physics is done only when the sum of the forces exerted on an object made a motion to the object. What does this mean? ...
Hunting oscillation
Hunting oscillation is a self-oscillation, usually unwanted, about an equilibrium. The expression came into use in the 19th century and describes how a system ""hunts"" for equilibrium. The expression is used to describe phenomena in such diverse fields as electronics, aviation, biology, and railway engineering.