Home
Class 12
PHYSICS
A constant power P is applied to a parti...

A constant power `P` is applied to a particle of mass `m`. The distance traveled by the particle when its velocity increases from `v_(1)` to `v_(2)` is (neglect friction):

A

`(3P)/m (v_2^2 - v_1^2)`

B

`(m)/(3P) (v_2 - v_1)`

C

`m/(3P) (v_2^3 - v_1^3)`

D

`m/(3P) (v_2^2 - v_1^2)`

Text Solution

Verified by Experts

The correct Answer is:
C

`P = Fv = mav implies a = P/(mv) implies m int_(v_1)^(v_2) v^2 dv = P int_(0)^(s) ds implies S = m/(3P) (v_2^2 - v_1^2)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

A constant power P is applied to a partical of mass m . The distance travelled by the partical when its velocity increases from v_(1) to v_(2) is (neglect friction):

A constant power P is applied on a particle of mass m. find kintic energy, velocity and displacement of particle as function of time t.

A particle is moving on a straight line and all the forces acting on it produce a constant power P calculate the distance travelled by the particle in the interval its speed increase from V to 2V.

A particle of mass m is moving in a stright line , If x is the distance travelled by the particle then its velocity is given as v = alpha x , here alpha is a constant . Calculate work done by all the forces acting on the body when particle is displaced from x = 0 to x = d .

A self-propelled vehicle of mass m, whose engine delivers a constant power P, has an acceleration a = (P//mv) . (Assume that there is no friction). In order to increase its velocity from v_(1) to v_(2) , the distan~e it has to travel will be:

If velocity is depend on time such that v = 4 – 2t. Find out distance travelled by particle from 1 to 3 sec

A moving particle of mass m collides elastically with a stationary particle of mass 2m . After collision the two particles move with velocity vec(v)_(1) and vec(v)_(2) respectively. Prove that vec(v)_(2) is perpendicular to (2 vec(v)_(1) + vec(v)_(2))

A particle of mass m initially moving with speed v.A force acts on the particle f=kx where x is the distance travelled by the particle and k is constant. Find the speed of the particle when the work done by the force equals W.

Two particle of masses m and 2m are coliding elastically as given in figure. If V_(1) and V_(2) speed of particle just after collision then