You MUST include units on every single answer! Otherwise, your answer will be counted as incorrect.
You MUST include units on every single answer! Otherwise, your answer will be counted as incorrect.
A hockey player uses 300 Watts of power to hit a 2 kg puck over the course of 1.5 seconds to get it moving.
How much work was done on the puck?
A bobsled team pushes on their (initially stationary) 200 kg sled for 6 seconds to get it up to a speed of 4 m/s
What is the KE of the sled after the push?
How much work do they do while pushing?
How much power do they exert?
A giant barbell is on the ground, then a weightlifter uses 400 Newtons of force to raise the barbell 2 meters, which takes 0.5 seconds.
How much work was done?
What is the final GPE?
What was the power required for this maneuver?
What is the puck's final KE?