Question

The velocity of a particle moving with constant acceleration at an instant t° is 10m/s. After 5s of that instant the velocity becomes 20m/s. The velocity at 3s before t° was?

Answer 1

Answer:

The value of u will be 4m/s

Explanation:

The initial velocity be “u” as per question after 3 seconds the velocity becomes 10 metre per second and again after 5 seconds the velocity becomes 20 metre per second we are given that acceleration is constant.

We can say acceleration from you to 10 is equal to acceleration from 10 to 20.

$\frac{u-10}{3}=\frac{10-20}{5}$

On solving we get; 5u = 50+30-60

U= 4m/s

Answer 2

The best solution of this answer is followed above

Thanks to the guy who answered this question.