If an object is accelerating at 25 m/s^2...?

Question

...how far does it travel in one second? I got 12.5 m, although I'm not sure if it's correct...

Sorry, I forgot to mention that the object's initial speed is 0 m/s and that the object is moving in a constant direction, without gravity.

Answer 1

In the first second, it will travel

s = ut +1/2 a .t^2 = 1/2 a = 12.5 m and so your calculation is correct. It is starting from rest and so u, the initial velocty is 0. Since t = 1 second, t^2 is also 1.

If you use the formula given above, you won't get that doubt. Best wishes.

Answer 2

A)
S=vo+t^2 a 1/2 ...........vo=0 initial velocity and a=accelaration=25 m/sec^2
S=t^2 a 1/2
S=(1 sec)^2 25 1/2
S=12.5 m
.

Answer 3

the question has problem.you should give the velocity of the object at the begining of it's motion.
d=1/2at^2+v(at the begning)*t
your answer is correct only if the velocity at the beginging is zero.it means that at t=0,the object doesn't have nay velocity.