Question

A body of weight 500N is taken to a planey where g is 20m/s^2 Calculate the weight of the body on that planet.

Pls answer...​

Answer 1

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

v

2

=u

2

+2as

(20)

2

=(0)

2

+2as

a=

s

200

(1)

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

s=

2

1

at

2

s=

2

1

a(10)

2

a=

50

s

(2)

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

s

200

=

50

s

s=100m

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

a=

50

100

=2m/s

2

The weight is given as,

W=0.5×2

=1N

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