Two objects A and B move such that their versus graphs are straight lines through the…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

Two objects A and B move such that their

KE

versus

v^{2}

graphs are straight lines through the origin with slopes

5\,\text{J\,s}^{2}\!\big/\!\text{m}^{2}

and

8\,\text{J\,s}^{2}\!\big/\!\text{m}^{2}

respectively. When each object is moving at

4\,\text{m/s}

, what is the ratio

KE_{A}:KE_{B}

? (a)

25:64

(b)

8:5

(c)

5:8

(d)

1:1