Click to Chat

0120-4616500

CART 0

• 0

MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details
Get extra R 700 off
USE CODE: SSPD25

```				   A 0.2 kg rubber         ball is dropped from the window of a building. It strikes         the sidewalk below at 30 m/s and rebounds at 20 m/s. Find         the change in momentum of the ball as a result of the         collision with the side walk (in kg m/s).
```

6 years ago

Share

```										answer will be 2 kgm/s
```
6 years ago
```										change in momentum =mdv
=m(Vf - Vi)
=.2(30-(-20))=10N.S
```
6 years ago

# Other Related Questions on Mechanics

a body is projected with a velocity 60 ms at 30 degrees to horizontal.its initial velocity vector is

on resolving the vector into its x axis and y axis.60cos30 i+60sin30 j.solve it now.u wil get required answer

 sunny 3 months ago

u=ucos theta +u sin theta u=60[cos30]+60[sin30] u=30 root 3i+30j this is the correct process for the answer

 Sathvik Jaisheel 13 days ago
please solve this graph based question and what is indicator diagram mean ?

The loops are closed therfore, The total work done by each loop would be zero. Hence it is a closed loop. The net Work Done is zero for closed loop as change in Volume is zero being volume...

 2017 years ago
A disc of radius R , mass M lies on smooth horizontal surface. Two persons of equal mass m standing on diametrically opposite points. Both persons start moving in same sense, then find...

In same sense as it has been mentioned in the qstn. assuming both v speed as clockwise (let), the disc to be assumed as a rectangular piece of length 2*pi*R and width R (ct from the first...

 Vikas TU 3 days ago
When 10 ohm load is applied to a unknown voltage source a current of 2A flows and when the Load resistance is increased to 20 ohm, the current drops to 2A. if a load of 15 ohm is connected...

PLEASE CHECK THE QUESTION AS THERE IS AN ERROR IN THE FIRST LINE WHEN LOOKING AT THE SECOND LINE. I SHALL PASTE IT HERE FOR YOUR PERUSAL. ‘’When 10 ohm load is applied to a unknown voltage...

 Bejoi Mathew 2 months ago
what is right hand thumb rule and tells about their uses?

According to left hand thumb rule if we place a current carrying conductor in our right hand such that the thumb points towards the current then the curl of the finger gives direction of...

 Arun 10 months ago

Ampère's right hand screw rule (also called right - hand grip rule , coffee-mug rule ... The thumb points direction of current and fingers point direction of magnetic

 Prabhakar ch 8 months ago

Salvath, According to right hand thumb rule we consider as put thumb in current direction and curl fingers then we get magnetis field as the tangent of fingers.

 SAI SARDAR 9 months ago
what lenses are usefor farsighted people?why?

CONCAVE LENSES BECAUSE WE HAVE TO DIVERGE THE RAYS

 pa1 one year ago

Salvathshaik, Converging lenses are used for far sighted people because This converging lens will refract light before it enters the eye and subsequently decreases the image distance.

 SAI SARDAR 9 months ago

Salvathshaik, Converging lenses are used for far sighted people because This converging lens will refract light before it enters the eye and subsequently decreases the image distance

 SAI SANDY 9 months ago
View all Questions »

• Complete Physics Course - Class 12
• OFFERED PRICE: R 2,600
• View Details
Get extra R 650 off
USE CODE: SSPD25

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details

Get extra R 700 off
USE CODE: SSPD25

More Questions On Mechanics