Question: When a horizontal force of 300 N is applied to
When a horizontal force of 300 N is applied to a 75.0-kg box, the box slides on a level floor, opposed by a force of kinetic friction of 120 N. What is the magnitude of the acceleration of the box?
Answer to relevant QuestionsA rocket is far away from all planets and stars, so gravity is not a consideration. It is using its rocket engines to accelerate upward with an acceleration a = 9.80 m/s2. On the floor of the main deck is a crate (object ...A 2.0-kg object has an acceleration of 1.5 m/s2 at 30o above the – x-axis. Write the force vector producing this acceleration in component form. (a) As a weightlifter lifts a barbell from the floor in the “clean” procedure (Fig. 5.25a), has he done work? Why or why not? (b) In raising the barbell above his head in the “jerk” procedure, is he doing work? ...You are carrying a backpack across campus. What is the work done by your vertical carrying force on the back-pack? Explain. A hockey puck with a mass of 200 g and an initial speed of 25.0 m/s slides freely to rest in the space of 100 m on a sheet of horizontal ice. How many forces do nonzero work on it as it slows: (a) (1) none, (2) one, (3) ...
Post your question