Physics
Grade-10
Easy
Question
The weight of the body at a certain place is 30 N. The acceleration due to gravity at that point is 10 m/s2. Find out the mass of the object at the place where the acceleration due to gravity is 5 m/s2?
- 3 kg
- 30 kg
- 15 kg
- 5 kg
Hint:
Use the relation weight = mass x gravity.
The correct answer is: 3 kg
The correct option is a)3 kg.
Given:
weight of object= 30 N
Acceleration due to gravity = 10 m/s2
weight = mass x gravity
30 N= mass x 10
mass= 30/10 = 3kg
The mass of the object doesn't change due to gravity, so even at 5 m/s2 acceleration due to gravity the mass will be same.
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