Forces, Work, Power and Pressure

Which is the correct unit for work?

Newtons are the correct unit for which of the following?

What is the correct unit for power?

It took 50 Joules to push a chair 5 meters across the floor. With what force was the chair pushed?

What is the power of a kitchen blender if it can perform 3,750 Joules of work in 15 seconds?

How much work is done using a 500-watt microwave oven for 1 minute? (Hint: Use seconds as the unit for time.)

What is the force on a 2.4 kg skateboard accelerating at a rate of 2 m/s²?

How much power is used if a force of 35 Newtons is used to push a box a distance of 10 meters in five seconds? (Hint: Solve for work first. This is a 2-step problem.)

It took 500 Newtons of force to push a car four meters. How much work was done?

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec². What is the mass of the object?