Home
Class 12
PHYSICS
Two particles are projected with speed 4...

Two particles are projected with speed `4m//s` and `3m//s` simultaneously from same point as shown in the figure. Then:

A

Their relative velocity is along vertical direction.

B

Their relative acceleration is non-zero and it is along vertical direction.

C

They will hit the surface simultaneously

D

Their relative velocity (for time interval `0 lt t lt 0.36s)` is constant and has megnitude 1.4 m//s.

Text Solution

Verified by Experts

The correct Answer is:
A, D
`v_(1)=4 cos 53^(@) hat(i) +4 sin 53^(@) hat(j)=(12)/(5) hat(i) +(16)/(5) hat(j)`
`v_(2)=3 cos 37^(@) hat(i) +3 sin 37^(@) hat(j)=(12)/(5) hat(i)+(9)/(5) hat (j)`
`v_(12) = (7)/(5) hat(j) = 1.4 hat(j)`
Relative velocity in horizontal direction is zero.
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.13|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.14|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.11|20 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

Two particles are projected with speed 4 m//s and 3 m//s simultaneously from same point as shown in the figure. Then :

A particle is projected at an angle 60^@ with speed 10(sqrt3)m//s , from the point A, as shown in the figure. At the same time the wedge is made to move with speed 10 (sqrt3) m//s towards right as shown in the figure. Then the time after which particle will strike with wedge is

A particle is projected at an angle 60^(@) with speed 10sqrt3 m/s from the point A as shown in the figure. At the same time the wedge is made to move with speed 10sqrt3 m/s toward right as shown in figure. Find the time after which particle will strike the wedge.

Two particles are projected from the two towers simultaneously, as shown in the figure. What should be value of 'd' for their collision.

Two particles are projected from the two towers simultaneously, as shown in the figure. What should be value of 'd' for their collision.

A particle P is projected with speed 20 m//s at angle 37^(@) from horizontal as shown in figure, At the some instant Q starts from same point and moves with uniform acceleration towards right. Path of the particle P w.r.t. Q is straight line Acceleration of Q is : .

From an inclined palne two particles P,Q are projected with same speed at same angle theta ,one up and other down the plane as shown in figure.Which of the following statement(s) is/are correct ?

Two particles of equal mass are projected simultaneously with speeds 20 m//s end 10sqrt(3)m//s as shown in figure. Find the maximum height reached by the centre of mass of the particles

Two particles are projected simultaneously from the level ground as shown figure. They may collide after a time :

Two particles are projected horizontally with same speed 30 m//s but in opposite directions from same height at time t = 0 . Calculate angle between velocity vectors of particles at time t = 3s .