Question

answer it briefly and correct​

Answer 1

Answer:

here's your answer

Explanation:

The acceleration when the mass is going up is given as,

v² =u²+2as

(20)² =(0)²+2as

a= 200/s (1)

The acceleration when the mass is going down is given as,

s=1/2at²

s=1/2a(10)²

a= s/50 (2)

From equation (1) and (2), we get

200/s = s/50

s=100m

Substitute the value of s in the equation (2), we get

a= 100/50

=2m/s²

The weight is given as,

W=0.5×2

=1N

Thus, the weight of the body on that planet is 1N.

Answer 2

Answer:

t = 2 seconds

Hope It helped uh