First slide

Newton's laws of motion

Question

A force of 10 pound is applied on a body of 1 kg. The acceleration of the body is

Easy

A

$44.5 m s^{- 2}$
B

$4.448 m s^{- 2}$
C

$44.4 m s^{- 2}$
D

None of these

Solution

Force, F =ma
$∴ a = \frac{F}{m} = \frac{10 p o u n d}{1 k g}$
$= 10 \frac{0.453 \times 9.8}{1} = 44.39 m s^{- 2}$

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