Download document

Indicate what effect the change
will have on the acceleration.
The mass of the cart is increased to 2 kg.
For 100 points
The acceleration decreases
Indicate what effect the change
will have on the acceleration.
The towing force is increased to 1.0 N.
For 500 points
The acceleration increases
Indicate what effect the change
will have on the acceleration.
Both the mass of the cart and the towing force
are doubled.
For 300 points
The acceleration remains the same
Indicate what effect the change
will have on the acceleration.
The 0.5 N towing force is applied at an angle as shown at right.
For 1000 points
The acceleration decreases
Indicate what effect the change
will have on the acceleration.
The track is inclined as shown below at right.
For 2500 points
The acceleration decreases
Indicate what effect the change
will have on the acceleration.
The 0.5 N force is applied to two 500 g carts
hooked together as shown below right.
For 400 points
The acceleration remains the same
Draw the position vs. time and
acceleration vs. time graphs
corresponding to the velocity graph
between points c and d
For 100 points
For the interval from a to b the train is:
a.
speeding up.
b.
slowing down.
c.
moving at constant speed.
d.
moving in the negative direction.
For 10000 points
b. slowing down
Is the net force on the train equal to
zero at any time? Explain.
For 50000 points
• From b to c because the train is moving at
a constant speed
Where is the net force on the train the
largest? Explain.
For 1000 points
• From c to d because the acceleration is the
greatest between those two points
A 700. kg Yugo can go from rest
to a speed of 45 m/s in 9.0s.
What average net force acts on
the car?
For 100 points
3500 N
Consider the block on a surface below.
The coefficient of friction, µ, is
0.20.
If a 10. N force is applied to the block, what
is its acceleration?
For 8000 points
3 m/s2
Consider the block on a surface below.
The coefficient of friction, µ, is
0.20.
How fast will the block be moving if the
force of 10 N is applied for 5.0s?
For 200 points
15 m/s
Consider the block on a surface below.
The coefficient of friction, µ, is
0.20.
How far will the block travel if the force of
10 N is applied for 5.0s?
For 300 points
38 m
The diagram below depicts a frictionless
apparatus similar to that used for your Newton's
2nd Law experiment. Block A has a mass of 25
kg and block B has a mass of 5.0 kg.
Determine the acceleration of
the system and the tension in the
string.
For 3000 points
1.6 m/s2
41 N
A 70.0 kg box is pulled across a
frictionless surface by a 300. N force at
an angle of 30.° to the horizontal.
What is the acceleration of the box in the xdirection?
For 400 points
2
3.7 m/s
A 70.0 kg box is pulled across a
frictionless surface by a 300. N force at
an angle of 30.° to the horizontal.
What is the normal force on the box?
For 500 points
536 N
A 20.0 kg block is allowed to accelerate
down a ramp with negligible friction.
Determine the acceleration of the block.
For 200 points
3.2 m/s2
A 20.0 kg block is allowed to accelerate
down a ramp with negligible friction.
Would the acceleration be different if the mass of
the block were 10kg? Explain.
For 600 points
No, because it is gravity that is pulling the
block down the ramp. Only changing the
incline changes the acceleration, as long
as the ramp is frictionless.
For 300 points