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A worker on a railway cart is pushing a...

A worker on a railway cart is pushing a box. The cart is moving at a constant speed of 20 m/s by some external agent. The box has a mass of 25 kg, and is being pushed forward over a distance of 2m on the cart by the worker at constant acceleration, increasing its speed from 0 to 2 m/s relative to car.
(a) What will be the value of change in kinetic energy and work done by worker as calculated by Tenzing, who is standing on the cart.

Text Solution

AI Generated Solution

To solve the problem step by step, we need to calculate the change in kinetic energy of the box and the work done by the worker. ### Step 1: Calculate the Change in Kinetic Energy The change in kinetic energy (ΔK) can be calculated using the formula: \[ \Delta K = K_{\text{final}} - K_{\text{initial}} \] ...
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