A Joule is a measurement of ...

(a)  

A sled is pulled at a constant velocity with a force of 25N. The rope was at a 35-degree angle with the ground. How much work is done on the sled is you walk 500m? *Round to the nearest tenth (0.0)

(a)  

How much work is done when you lift a weight with a constant force of 20 N (up), as you walk 300 m (right)? *hint- think about the angle.

(a)  

A crane lifts a 500 kg beam to a 10 m high roof at a constant speed. It takes 50 seconds to do so.

What is the power of the crane?

(a)  

What is the kinetic energy of a person with a mass of 50kg moving at a speed of 2 m/s?

(a)  

A shopper pushes a 40 kg shopping cart with a force of 25 N for 35 m. What was the shopping carts final velocity, if the initial velocity was 1.0m/s?

*hint- you need to calculate the work (change in energy) first

(round to the nearest hundredth)

(a)  

Which factor, mass or velocity, has a greater affect on kinetic energy?

(a)  

What is the gravitational energy of a 50 kg bungee jumper who is on a bridge 50 m above the ground?

(a)  

What is the possible kinetic energy of an object that is 40 kg and 50 m above the ground?

(a)