The velocity of a particle moving with a uniform acceleration of 10 ms -2 after 5s is 50 ms -1 . It's velocity at t=5 is ?
The particle moves with uniform acceleration of
The particle attains a velocity of at a time
By first equation of motion,
So the particle started its journey from rest.
Well, the velocity as a function in time is, by first equation of motion,
So at t = 4 seconds,
Hence is the answer.
because v + a / t = velocity , so
EXCUSE ME,YOU GIVEN TIME AS T=5 SECS ,BUT THE ORIGINAL QUESTION IS T=4SECS
AND,SO,I DERIVED FOR T=5SECS
last velocity,V = 50 m/s
=>U=V - at
=>U =50 - (10×5)
=>U = 0 m/s
again, t'=5 s
=>V'= 50 m/s
NONE OF THE ABOVE..!!
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