Home
Class 12
PHYSICS
A mass of 100 g strikes the wall with sp...

A mass of 100 g strikes the wall with speed `5 m//s` at an angle as shown in figure and it rebounds with the same speed it the contact time is `2 xx 10^(-3) sec`. What is the force applied on the mass by the wall :

A

`250 sqrt(3)` to right

B

250 N to right

C

`250 sqrt(3) N` to left

D

250 N to left

Text Solution

Verified by Experts

The correct Answer is:
C
`F_(x)=(Delta P_(x))/(Delta t)=((P f_(x)-P i_(x)))/(Delta t)`
`=(-mV sin 60^(@) -(mV sin 60^(2)))/(2 xx10^(-3))=-250 sqrt(3)N`
`= 250 sqrt(3) N` towards left.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.20|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.21|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.18|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise High Level Problems (HIP)|19 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

A ball of mass 3kg moving with a speed of 100 m/s, strikes a wall at an angle 60^(@) (as shown in figure). The ball rebounds at the same speed and remains in contact with the wall for 0.2 s, the force exerted by the ball on the wall is

A ball of mass 600 gm strikes a wall with a velocity of 5 ms^(-1) at an angle 30^@ with the wall and rebounds with the same speed at the same angle with the wall. The change in momentum of the ball is, (in kg ms^(-1) )

Knowledge Check

  • A ball of mass m strikes a rigid walJ with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is

    A
    `("mu sin"30^(@))/(t)`
    B
    `("2mu sin"30^(@))/(t)`
    C
    `("mu cos"30^(@))/(t)`
    D
    `("2mu cos"30^(@))/(t)`

  • A ball of mass m strikes a rigid walJ with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is

    A
    2mu
    B
    mu
    C
    zero
    D
    `-2"mu"`

  • A 3 kg ball strikes a heavy rigid wall with a speed of 10 m/s at an angle of 60^(@) . It gets reflected with the same speed and angle as shown in Fig. 15.3.11. It the ball is in contact with the wal for 0.20 s, what is the average force exerted on the ball by the wall ?

    A
    zero
    B
    150 N
    C
    150 `sqrt(3)` N
    D
    300 N

    • Similar Questions

    Explore conceptually related problems

    A 3.00 kg steel hall strikes the wall with a speed of 10.0 m//s at an angle of 60^(@) with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s , what is the average force exerted by the wall on the ball?

    A 1 kg particle strikes a wall with velocity 1 m/s at an angle of 60^o with the wall and reflects at the same angle. If it remains in contact with the wall for 0.1 s, then the force is

    A body of mass 2kg collides with a wall with speed 100 m/s and rebounds with same speed. If the time of contact was 1/50 second, the force exerted on the wall is

    A body of mass 3kg moving with speed 5 ms^(-1) , hits a wall at an angle of 60^(@) and return at the same angle. The impact time was 0.2 sec. calculate the force exerted on the wall :

    A ball of mass m moves with speed v and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

    Home
    Profile