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

Momentum of a body is increased by 20%.Find % increase in Kinetic Energy

Momentum of a body is increased by 20%.Find % increase in Kinetic Energy 


 

Grade:11

2 Answers

Neel Pratik Bhatt
18 Points
10 years ago

Dear Nitin,

Momentum = mass * velocity = force * time 
Kinetic Energy = 1/2 * mass * velocity squared 

Since the mass of your object is not likely changing, it is the velocity which is changing. Therefore, your new velocity is 1.2 times your initial velocity. In the kinetic energy equation, velocity is squared. 1.2 squared = 1.44, and since nothing else is changing, your kinetic energy is now 1.44 times initial. This is an increase of 28.8%.Is The Answer Clear?

 

-Neel Bhatt

-Student(i Take askIITians Sessions) 

Nitin Gupta
16 Points
10 years ago

Sorry! Your answer is wrong.The correct answer is 44%

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

10th iCAT Scholarship Test Registration Form