चलती बस के अचानक रुकने पर उसमें खड़ा यात्री आगे की ओर झुक जाता है। इस परिघटना का सबसे अच्छा स्पष्टीकरण किसके द्वारा दिया जाता है?

The tendency of an object to resist a change in its state of motion is called:

A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of static friction between the box and the trolley is 0.12. To keep the box stationary relative to the trolley, the maximum horizontal acceleration (in m/s2) with which the trolley can move is: (g = 10 m/s2)