Question

answer it briefly and correct​

Answer 1

Answer:

1N

Explanation:

the acceleration when the mass is going up is given as

v*2×u*2=2as

(20)*2=(0)*2+2as

the acceleration when the mass is going down is given as

s=1/2at*2

s=1/2a×(10)*2

a=s/50

200/s=s/50

s=100m

substitute the value of s in equation(2)

we get

a=100/50

a=2m/s

the weight is given as

w=0.5×2

=1N