Question

Which would require a greater force,accelerating 10g mass at 5m/s2 or 20g mass at 2m/s2 ?

Answer 1

•CASE I
m = 10g = 0.01kg
a = 5 m/s^2
F=ma
= 0.01 × 5
= 0.05 N
•CASE II
F = ma
m = 20g = 0.02kg
a = 2 m/s^2
F = ma
= 0.02 × 2
= 0.04N

Clearly, Case I will require more force.

Answer 2

Answer:

case 1 will chiku a greater force to accelerate

Explanation:

10g = 0.01 kg

and

20g = 0.02 kg

$we \: all \: know \: that \\ f = m \times a$

Case 1

f = 0.01 * 5 =0.05 N

Case 2

f = 0.02*2=0.04N

clearly Case 1 is the answer