Question

A constant force act on an object of mass 2 kg for 10 second's and increases its velocity from 5m/s to 10 m/s . find magnitude of applied force .if this force was apllied for a duration of 15 sec what will be the velocity of object ?

Answer 1

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Answer 2

$\bold{Given :-}$

$\bold{mass \: = \: 10kg}$

$\bold{time \: = \: 1sec}$

$\bold{initial \: velocity \: (u) = 5m/s}$

$\bold{final \: velocity (v) \: = 10m/s}$

$\bold \red{acceleration \: = \frac{v - u}{t}}$

$\bold{a \: = \: \frac{10 - 5}{1} }$

$\bold{a \: = \: 5m/s²}$

$\bold \red{force \: = \: m \times a}$

$\bold{force \: = \: 10kg \: \times 5m/s²}$

$\bold \green{force \: = 50N.... \: \: \: ans}$