Two carts, A and B

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

Problem

Two carts, A and B, start from rest on identical, frictionless tracks. Cart A has mass

m

; cart B has mass

4m

. Each cart is pushed forward by an identical engine that provides the same constant mechanical power. At a particular instant

t

after they begin moving, what is the ratio of the magnitudes of their accelerations,

\dfrac{a_{A}}{a_{B}}

? (a)

4

(b)

\dfrac{1}{2}

(c)

2

(d)

1