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The force required to accelerate a body of mass 10gm from rest to 10m/s, in 10 seconds is |
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Answer» :Mass of BODY = 10g = 0.01kgInitial velocity = zeroFinal velocity = 10m/sTome interval = 10sWe have to find magnitude of applied force★ As per newton's second law of MOTION force is defined as the rate of change of linear momentum.F = dp/dtForce is a polar vector quantity as it has a point of application.Momentum is measured as the product of mass and velocity.F = m (V - u) / tF denotes forcem denotes massv denotes FINAL VELOCITYU denotes initial velocityt denotes timeBy substituting the given values;➝ F = m (v - u) / t➝ F = 0.01 (10 - 0) / 10➝ F = 0.01 × 10/10➝ F = 0.01 N |
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