boydfamily10 boydfamily10

26-05-2014
Physics

Answered

sophia exerts a steady 40n horizontal force on a 8kg resting on a lab bench. the box slides against a horizontal friction of 24n. show that the box accelerates at 2m/s 2

Answer :

26-05-2014

Force = 40 - 24 = 16N

Force = mass / acceleration

Acceleration = Force / mass

Acceleration = 16 / 8

Acceleration = 2 m/s^2

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tadvisohil886 tadvisohil886

27-05-2014

Force = 40 - 24
= 16N.

Thus, Force = 16N.

By deducing Newton's second law of motion,

F = MA

16 = 8A

Thus, A = 16/8 = 2 m/s²

Thus, the object accelerates at 2m/s²

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