Answer to Question #214308 in Physics for Rhytham verma

Question

A small box (1.6 kg) is kicked down an incline with an initial speed of 6.8 m/s. The incline makes an angle of 17.9o relative to horizontal and the force of friction has 30% of the magnitude of the normal force. What is the acceleration of the box? Use a forces approach to solve

An elevator is travelling 2.50 m/s upward when the brakes are put on. The acceleration is 𝑎⃑ = 1.25 𝑚 𝑠 2 downward while the brakes are applied. Using kinematics: a) How many seconds does it take to bring the elevator to a stop? b) Calculate the displacement vector of the elevator while it is being brought to a stop. 

A large object slides down a frictionless slope that is inclined at 15o . It has an initial speed of 4 m/s. What is the speed of the object after it has slid 7 m along the slope? Solve using an energy approach. 

Answer 1

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