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
Menu
Grade: 11

                        

A heavy box is slid across a rough floor with an initial speed of 4 m/s. It stops moving after 8 sec. If the average resisting force of friction is 10N the mass of box in kg is

3 years ago

Answers : (1)

Ashish kumar sharma
19 Points
							According to the question-u=4m/sv=0m/st=8 secSo let`s first try to find out the accelerationHere`s how we can:Using v=u+atWe get, 0=4+a(8)              a=1/2 m/s²So next step,Let frictional force to be FThus, F=m×a           10= m×1/2          So, m=20kgTherefore the mass is 20kg.Hope it helped:)
						
3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details