Question

What force is needed to give a 4.5-kg bowling ball an acceleration of 9 m/s2?

Answer 1

What force is needed to give a 4.5-kg bowling ball an acceleration of 9 m/s2? 

$F = ma F = 4.5 x 9$

40.5 N

Answer 2

f=ma  
f=4.5*9                                           

40.5 N
hope this help