Question

A car starts from rest and accelerates uniformly at 2m/s-2 10 second . what is its velocity at the end of 10 second.

Answer 1

u = 0
a = 2 m/s²
t = 10 sec
v = ?
By 1st equation of motion,
v=u+at
  =0 +2×10 = 20 m/s

Answer 2

Answer:

Explanation:

Given :-

Initial Velocity, u = 0

Acceleration, a = 2 m/s²

Time taken, t = 10 sec

To Find :-

Final Velocity, v = ?

Formula to be used :-

1st Equation of motion,

v = u + at

Solution :-

Putting all the values, we get

Final Velocity = u + at

Final Velocity = 0 + 2 × 10

Final Velocity = 20 m/s

Hence, velocity at the end of 10 second is 20 m/s.