A particle starts with an initial velocity 2.5 m/s along the positive x-direction and it accelerates uniformly at the rate 0.50 m/s2. Time taken to reach the velocity 7.5 m/s will be

Question

A particle starts with an initial velocity 2.5 m/s along the positive x-direction and it accelerates uniformly at the rate 0.50 m/s2. Time taken to reach the velocity 7.5 m/s will be (A) 5 s (B) 2 s (C) 10 s (D) 15 s

Tardigrade Admin · Accepted Answer

We have v = u + at or 7.5 = 2.5 + 0.50t ⇒ t= 10 s Hence correct answer is (c)

Q. A particle starts with an initial velocity $2.5$ m/s along the positive x-direction and it accelerates uniformly at the rate $0.50 m / s^{2}$ . Time taken to reach the velocity $7.5$ m/s will be

$5 s$

$2 s$

$10 s$

$15 s$

We have $v = u + a t$ or $7.5 = 2.5 + 0.50 t$
$\Rightarrow t = 10 s$
Hence correct answer is (c)

Q. A particle starts with an initial velocity 2.5 m/s along the positive x-direction and it accelerates uniformly at the rate 0.50m/s2. Time taken to reach the velocity 7.5 m/s will be

5s

2s

10s

15s