Question

On the moon surface the accerelation due to gravity is 1.67 msq2 if the radius moon is 1.47×106 m calculate the mass of the moon

Answer 1

Answer:

Gravity = 1.67 msq2

Radius = 1.47 × 106 m

Mass = ??

We know that

G = AM / R2

1.67 = 6.67 × 10-2 × M / ( 1. 74 × 106 ) 2

M = 1.67 × ( 1. 74 × 106 ) 2 / 6.67 × 10-2

= 1.67 × 1.74 × 1.74 / 6.67

× 10 12+11

= 0.758 × 10 38

= 7.58 × 10 32 kg