Under the action of force F, a body is moving with a uniform acceleration of 5 m/s2. The force
required to produce a retardation of 10 m/s2 is
(A)-F
(B)-2 F
(C) 2F
(C) none of these
Answers
Answered by
23
Answer:
(B) -2F
Explanation:
Let the mass of the body be 'm'
By Newton's second law,
F = ma
⇒F = 5m ........ 1
Let F' be force required to produce a retardation of 10 m/s²
⇒F' = -10m.........2 (acceleration is negative because it is acceleration in opposite direction i.e deceleration
Dividing equations 1 and 2 we get,
⇒F' = -2F
Answered by
4
Answer:
THe answer will be -2F
Explanation:
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