1. How far (in meters) must a 600 kg pile driver fall, ifit is to do 14000 J of work?
2. A spring whose spring constant is 150 N/m is compressed0.800 m. What speed (in meters/second) can it give to a 0.600 kgball when released?
3. A 550 N crate rests on the floor. How much work injoules is required to move it at constant speed 4.0 m along thefloor, against a friction force of 140 N?
4. What is the minimum work in joules needed to push a1710 kg car 74.0 m up a 12.5 degree incline? (Ignorefriction.)
6. A 1620 kg car rolling on a horizontal surface has aspeed of 70 km/hr when it strikes a horizontal coiled spring and isbrought to rest in a distance of 5.5 m. What is the spring constant(in N/m) of the spring? (Ignore nonconservative forces such asfriction.)
8. Tarzan is running at a top speed of 5.0 m/s and grabs avine hanging vertically from a tall tree in the jungle. How high(in meters) can he swing upward?
9. An object slides down a frictionless 33 degree inclinewhose vertical height is 87.0 cm. How fast is it going inmeters/second when it reaches the bottom?
1. How far (in meters) must a 600 kg pile driver fall, ifit is to do 14000 J of work?
2. A spring whose spring constant is 150 N/m is compressed0.800 m. What speed (in meters/second) can it give to a 0.600 kgball when released?
3. A 550 N crate rests on the floor. How much work injoules is required to move it at constant speed 4.0 m along thefloor, against a friction force of 140 N?
4. What is the minimum work in joules needed to push a1710 kg car 74.0 m up a 12.5 degree incline? (Ignorefriction.)
6. A 1620 kg car rolling on a horizontal surface has aspeed of 70 km/hr when it strikes a horizontal coiled spring and isbrought to rest in a distance of 5.5 m. What is the spring constant(in N/m) of the spring? (Ignore nonconservative forces such asfriction.)
8. Tarzan is running at a top speed of 5.0 m/s and grabs avine hanging vertically from a tall tree in the jungle. How high(in meters) can he swing upward?
9. An object slides down a frictionless 33 degree inclinewhose vertical height is 87.0 cm. How fast is it going inmeters/second when it reaches the bottom?
