Question

the dispacement of a body in 4s starting from a rest with an acceleration of 10m/s2 is ??

Answer 1

Answer:

Displacement = 80m

Explanation:

We know that from Newton's Laws of motion,

$\boxed{S = ut + \frac{1}{2}at^{2} }$

Given that,

Initial velocity = u = 0m/s   (Body starts at rest)

Acceleration = a = 10 m/s²

Time taken = t = 4s

Putting these values in we get,

$\boxed{S = ut + \frac{1}{2}at^{2} }$

S = 0*4 + 1/2 * 10 * 4²

S = 0 + 1/2 * 10 * 16

S = 80m