A body moving along a straight line at 20 metre per second undergoes and acceleration of 4 m/s²after 2 second is its speed will be

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Solution

from equation of motion we have

v= u+at …(1)

u= initial velocity = 20m/s

v=final velocity

a= acceleration = 4m/s2

t= time = 2sec

v= 20 + 4x 2

v= 28m/s

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A body moving along a straight line at 20 metre per second undergoes and acceleration of 4 m/s2after 2 second is its speed will be

from equation of motion we have v= u+at …(1) u= initial velocity = 20m/s v=final velocity a= acceleration = 4m/s2 t= time = 2sec v= 20 + 4x 2 v= 28m/s

A body moving along a straight line at 20 metre per second undergoes and acceleration of 4 m/s²after 2 second is its speed will be

from equation of motion we have

v= u+at …(1)

u= initial velocity = 20m/s

v=final velocity

a= acceleration = 4m/s2

t= time = 2sec

v= 20 + 4x 2

v= 28m/s