Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Consider a ball moving with a velocity of 10m/s and strikes a rough wall with the velocity with which it is moving at an angle of 37 degrees with the vertical and rebounds with same angle with 5m/s. Find the coefficient of friction of the wall.

Consider a ball moving with a velocity of 10m/s and strikes a rough wall with the velocity with which it is moving at an angle of 37 degrees with the vertical and rebounds with same angle with 5m/s. Find the coefficient of friction of the wall.

Grade:

1 Answers

sanatan sharma
26 Points
8 years ago

the initial y-component of the ball = 8

initial x-component of the ball = 6

final y-component  = 4 

final x-component = 3

consider mass of ball as m 

now the momentum in x is changed by impulse of normal ( ∫Ndt )    (don''t be scared by the integration symbol , it''s just the denotion for impulse )

& the momentum in y by impulse of friction ( μ∫Ndt ) (since friction is kinetic )

now ,       ∫Ndt = 4m-8m = -4m

              μ∫Ndt = μ (-4m)= 3m-6m =-3m 

    therefore           μ = 0.75

 

PLEASE HIT LIKE BELOW ...... IF YOU LIKE THE SOLUTION   Smile

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free