Question

Which would require a greater force to accelerate a 1/2 kg mass at 5 ms' or 4 kg mass at 2 ms??​

Answer 1

Answer:

2 Kg

Explanation:

Force   F=ma

(1) :    F 1  = m1  * a1  =2×5= 10N

(2)) F2= m2 * a2 = 4×2= 8N

So, 2 kg will require greater force.

Answer 2

Explanation:

f=ma

f=1/2×5=2.5

f=ma

f=4×2=8

therefore 4kg at 2ms is needed more force