a vehicle of mass 20kg is moving with a velocity of 4 m\s
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Answer:
a = (v² - u²) / (2 × S)
= (1² - 4²) / (2 × 20)
= -0.375 m/s²
F = ma
= 20 kg × (-0.375 m/s²)
= -7.5 N
(-ve sign indiactes Force should be applied in opposite direction of motion of body)
Magnitude of Force to be applied is 7.5 N
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magnitude of to be applied if the distance is20m os7.5N
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