1.

A body is moving with a velocity of 10 m/s. If it starts acceleration with the rate of 2.5 m/s2 . Find out its velocity after 10s.

Answer»

Using the first equation of motion: v = u + at 

where: v = final velocity 

u = initial velocity = 10 m/s 

a = acceleration = 2.5 m/s2 

t = time = 10s 

v = 10 m/s + 2.5 m/s2 x 10s = 10+25 m/s = 35 m/s


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