An object moves with an acceleration of 6 ms−2 when a force of 30 N is applied. Calculate the mass of the object?
A
5 kg
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B
10 kg
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C
15 kg
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D
20 kg
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Solution
The correct option is B 10 kg Given : Force applied F=30N, acceleration a=6ms−2. Let m be the mass of the body. From newton's first law, F=m×a. We have 30=m×6. m=5kg.