A cart is initially at rest on a track with negligible friction

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

50\,\text{kg}

cart is initially at rest on a track with negligible friction. A motor mounted on the cart delivers a constant mechanical power of

500\,\text{W}

to the cart for the first

8.0\,\text{s}

. How far does the cart travel during this time interval? (a)

34\,\text{m}

(b)

68\,\text{m}

(c)

1.0\times10^{2}\,\text{m}

(d)

51\,\text{m}