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A body has a mass of 15 kg. Calculate:

a) The weight of the body.

A. 147 N
B. 150 N
C. 1470 N
D. 14.7 N

b) The force acting on the body.

A. 147 N
B. 150 N
C. 1470 N
D. 14.7 N

Answer :

Final answer:

The weight and the force acting on a body with a mass of 15 kg are both 147 N, calculated using the formula w = mg (where 'm' is the mass and 'g' is the acceleration due to gravity).

Explanation:

The mass of the body is 15 kg. We can calculate the weight of a body by using the formula w = mg, where 'w' is the weight, 'm' is the mass and 'g' is the acceleration due to gravity (standard value is 9.8 m/s²). Hence, the weight of the body would be 15 kg * 9.8 m/s² = 147 N. So, the correct answer for the weight of the body is A) 147 N.

The force acting on a body can also be calculated using the same formula of w = mg, as force is actually the gravitational pull (weight) that Earth exerts on the body. Thus, the correct answer for the force acting on the body is also A) 147 N. Remember, weight and force in this context are the same, as both are calculated using the same formula and both represent the same physical concept.

Learn more about Weight and Force Calculations here:

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