Question

the initial velocity of a body moving along a straight line is 7 metre per second it has a uniform acceleration of 4 meter per sencon​

Answer 1

Answer:

Explanation:

Correct Question,  (Reason - Incomplete)

The initial velocity of a body moving along a straight line in 7 m/s. It has a uniform acceleration of 4 m/s². The distance covered by the body in the 5th second of its motion is.

Solution,

Here, we have

Initial velocity, u = 7 m/s

Acceleration, a = 4 m/s²

Time taken, t = 5 seconds

To Find,

Distance covered, s = ??

According to the 2nd law of motion,

We know that,

s = ut + 1/2 × at²

So, putting all the values, we get

⇒ s = ut + 1/2 × at²

⇒ s = 7 × 5 + 1/2 × 4 × 5²

⇒ s = 35 + 2 × 25

⇒ s = 35 + 50

⇒ s = 85 m.

Hence, the distance covered by body in 5 second is 85 m.

Answer 2

The initial velocity of the moving body along a striaght line is 7m/s.it the uniform acceleration 4m/s2the distance covered by the body is 5th seconds of motion is.