Question

A 7.00- kg bowling ball moves at 3.00 m/s. How fast musta

Answer 1

Answer:

Ping Pong ball move at velocity 160.4 m/s

Explanation:

given data

mass m1 = 7 kg

velocity v1 = 3 m/s

mas m2 = 2.45 g = 2.45 × $10^{-3}$ kg

same kinetic energy

to find out

How fast Ping Pong ball move (v2)

solution

we know same KE

so

$\frac{1}{2}* m1* v1^{2} = \frac{1}{2}* m2* v2^{2}$   ...........1

so v2 will be

v2 = $\sqrt{\frac{m1*v1^2}{m2} }$    .............2

put here value in equation 2 we get v2

v2 = $\sqrt{\frac{7*3^2}{2.45*10^{-3}}}$

v2 = 160.4

so Ping Pong ball move at velocity 160.4 m/s