Home
Class 11
PHYSICS
Referring a-s diagram in , find the velo...

Referring `a-s` diagram in , find the velocity after particle travel `120 m` from starting. Assume `v_(0)=0`.
.

Text Solution

Verified by Experts

`a=-(s)/(20)+200`
`underset(0)overset(v)(int)v dv =underset(0)overset(250)(int)(-(s)/(20)+20)ds rArr (v^(2))/(2)=[-(s^(2)/(40)+20)s]_(0)^(250)`
`(v^(2))/(2)=-((250)^(2))/(40)+20 xx250`
`rArr v^(2)= 6875 rArr v=25 sqrt11 ms^(-1)`.
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS-1

    CENGAGE PHYSICS|Exercise Subjective|29 Videos

  • KINEMATICS-1

    CENGAGE PHYSICS|Exercise Single Correct|52 Videos

  • KINEMATICS-1

    CENGAGE PHYSICS|Exercise Exercise 4.3|15 Videos

  • GRAVITATION

    CENGAGE PHYSICS|Exercise INTEGER_TYPE|1 Videos

  • KINEMATICS-2

    CENGAGE PHYSICS|Exercise Exercise Integer|9 Videos

Similar Questions

Explore conceptually related problems

Referring to a-s diagram as shown in , findthe velocity of the particle when the particle when the spaarticle justcovers 20 m , (v_(0)=sqrt50 ms^(-1) . .

Referring to a-x graph, find the velocity when thedisplacement of the particle is 100 m . Assume intial velocity as zero. .

Refering to v-s diagram, find: . a. Acceleration of the particle when its velocity becomes half of the initial velocity. b. Total distance covered by the particle.

A particle starts moving due east with a velocity V_(1) = 5 m/sec. for 10 sec, turns to north and moves with a velocity V_(2) = 10 m/sec. for 5 sec. Find the average velocity of the particle during 15 sec. from starting.

A particle moves vertically with an upward initial speed v_(0) = 5 m//s . If its acceleration varies with time as shwon in a - t graph in the fig. 4.30, find the velocity of the particle at t = 7s .

The velocity of a particle moving with constant acceleration at an instant t_(0) is 10m//s After 5 seconds of that instant the velocity of the particle is 20m/s. The velocity at 3 second before t_(0) is:-

Refer Q.143 . Starting from t = 0 , what is the displacement of the particle at the end of 8 s ?

A particle starts from rest and has velocity kt after time t. The distance travelled in time t is-

A particle is dropped from some height. After falling through height h, the velocity of the particle becomes v_(0) . If it further falls through a distance y(y lt lt h) , find the approximate increase in velocity in terms of v_(0),y and h .