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

To test quality of tennis ball, u drop it on the floor from height 4m. It rebounds to height of 2m. If the ball is in contact with the floor for 12ms, what is avge. acclrtn during that contact?(g=9.8m/s 2 ) Also is there any way we can use without applying the concept of collision or elasticity?

To test quality of tennis ball, u drop it on the floor from height 4m. It rebounds to height of 2m. If the ball  is in contact with the floor for 12ms, what is avge. acclrtn during that contact?(g=9.8m/s2)


Also is there any way we can use without applying the concept of collision or elasticity?

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

dear chilukuri

velocity of teniss when it just about to touch the ground =√2g*4

                                                                               =√8g   or -√8g j

velocity of teniss ball when it just about to leave the ground after collison =√2g*2

                                                                                                          =√4g   or  √4g j

 

avg acceleration   = change in velocity /total time

                           =(√4g j +√8g j)/12* 10-3

                          =(√2 + 1)√g *103/6        m/sec2


 

Please feel free to post as many doubts on our discussion forum as you can.
 If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
 We are all IITians and here to help you in your IIT JEE  & AIEEE preparation.

 All the best.
 
Regards,
Askiitians Experts
Badiuddin

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