The graph below shows the force needed to stretch a spring. What work is needed to stretch it from 5 centimeters to 35 centimeters? Include units in your answer. More information. Force vs. Elongation Force (N) 8.00 4.00 0.00 0.00 0.20 Elongation (m) 0.40

A mother pulls her child on a sled across a rough patch of snow. The sled and child have a combined mass of 25kg. The sled’s tow rope is at 42° angle above the horizontal and the mother exerts a force of 65N. How much work has the mother done on the sled if she moves it 15m forward?

An object that weighs 35 N on earth moves downward a distance of 120 m in 22 seconds. What is the power output

How much work is done in lifting a 2.3 kg rock off the ground to put it on a table that is 1.3 m high?

A 6.26 kg box is pushed up against a 50,706 N/m spring. The box is then released and upon leaving the spring it is going 9.9 m/s. What height did the box reach if 110 J of thermal energy were produced?

A 35 N applied force pushes a box to the right. The box moves 12 m. How much work was done by the applied force?

A force of 50 N stretches a spring from an initial length of 10 cm to a length of 20cm. How much work is done to stretch the spring from an initial length of 20 cm to a length of 25 cm.

A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the output power, in kW (kiloWatts)?  Your answer needs to have 2 significant figure, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A person goes up a flight of stairs in 20 s. If the person weighs 600 N, and the vertica height of the stairs is 10 m, what is the person's power output? Answer: W