An object is moving along the positive x axis with a uniform acceleration of 4m/s2 at time t=0s x=5m and v=3m/s.
a) what will be the velocity and the positions of the object at t=2s ?
b) what will be the position of the object when it has a velocity of 5m/s ?
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a)
s=vt+1/2at^2
=(3×2)+(1/2×4×4)
=14m
v1=v+at
=3+(4×2)
=11m/s
b)
v1^2=v^2+2as
5^2=3^2+2×4s
s=16/8=2m
s=vt+1/2at^2
=(3×2)+(1/2×4×4)
=14m
v1=v+at
=3+(4×2)
=11m/s
b)
v1^2=v^2+2as
5^2=3^2+2×4s
s=16/8=2m
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