Question

Please solve this fast

Answer 1

Answer:

F = - 270N

Explanation:

Given,

m=0.04kg

u=90m/s

v=0m/s

S=60cm

From 3rd equation of motion,

2aS=v

2

−u

2

a=−

2S

u

2

a=−

2×60×10

−2

90×90

=−6750m/s

2

The resistive force, f=ma

f=−0.04×67.5

f=−270N