Question

An object changes its speed from 20 metre per second into 80 m per second in 1 minute .calculate the acceleration of the object?

Answer 1

given that
u= 20 metre per second
v= 80 metre per second
t= 1 minute = 60 second
so, a =( v- u)\ t
a=( 80-20)/60= 1 metre per second square

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