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Physics-

General

Easy

Question

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is

9.25 ${m s}^{- 1}$
5 ${m s}^{- 1}$
14.25 ${m s}^{- 1}$
4.25 ${m s}^{- 1}$

The correct answer is: 14.25 $text end text m s to the power of negative 1 end exponent$

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We have to remember all the three results instead of deriving them.

Rockets are launched in eastward direction to take advantage of

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