Download Ch. 4 Worksheet Forces in one dimensionx

Forces in one Dimension
Worksheet
Name __________________
1. Define Force, give the unit for force and what does a force create?
2. What is the relationship between force and acceleration on a constant mass?
3. Write Newton’s three laws of motion.
4. What is the equation for the second law of motion? What is the equation for weight and what is the
equation for the force of friction?
5. Define inertia and list two factors which determine the inertia of a moving object.
6. When the net force equals zero the object is said to be at _________________________ and the
forces are _____________________ and the object will not ________________________.
7. Calculate the apparent weight of a 86.0 Kg man riding on a elevator if the upward acceleration is
2.15m/s2?
8. How much force is needed to accelerate a 250 Kg flying donkey at a rate of 3.30m/s2
9. A boy weighing 55 lbs. is pulled on a weightless, frictionless sled by a non-flying donkey. How much
acceleration does the boy have if the donkey exerts a force of 358N? (1Kg = 2.21lbs.)
10. Donkey A is tied to donkey B and they are pulling in opposite directions. The force exerted by
Donkey A is -455.0N and the force exerted by Donkey B is 305.0N, if both donkeys weigh 386.0lbs,
What is the acceleration of the Donkey’s?
11. Donahue the dimwitted donkey accelerates at 2.78m/s2 for a distance of 50.m. Find Donohue’s
weight in Newtons, if the force applied is 760N?
12. What is the weight in Newtons of a 125Kg donkey?
13. A donkey is dropped from a plane and falls for 12.0s and reaches terminal velocity. What is the
terminal velocity of the Donkey?
14. A 1250N Donkey is laying on the ground and will not get up. Clarence the donkey handler ties a
rope on the Donkey and begins to pull him. If the coefficient of friction is 0.678, how much force must
Clarence exert on the rope?