Question

Which would require a greater force - a body of mass 25kg n accelerating at 10ms or
another body of mass 30 kg accelerating at 55ms? Give reason.​

Answer 1

Answer:

By second law of motion we have the formula as

Force = mass × acceleration

Given Force 1=1×10=10 Newton

Given Force 2=2×4=8 Newton

Hence, force 1 is greater than force 2.

SI unit of force is Newton. 1kg=nearly9.8N

Answer 2

Answer:

F1=250N F2=1650N

Explanation:

F=ma

so

F1=25×10=250N

and

F2=30×55=1650N

so

F2>F1