badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

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
Menu
Grade: 11

                        

What are the mass and weight of (a) a 1420-1b snowmobile and (b) a 412=kg heat pump?

5 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
							
We have to find out the mass and weight for both the parts.
(a) Weight of snow mobile, W = 1420-lb
= (1420-lb) (4.448N/lb)
= 6316.16 N
Rounding off to three significant figures, weight of snow mobile would be, 6320 N.
Weight of a body is equal to the mass of the body times (m) acceleration due to gravity (g) on that surface.
W = mg …… (1)
We know that that, the value of acceleration due to gravity (g) on the surface of earth is 9.81 m/s2.
So, from equation (1), m = W /g
= (6320 N/9.81m/s2)
= (6320 N/9.81m/s2) (1kg.m/s2 /1 N)
= 644.24 kg
Rounding off to three significant figures, mass of snow mobile would be, 644 kg.
Thus from the above observation we conclude that, mass of snow mobile is 644 kg and weight of snow mobile is 6320 N.
(b) Mass of heat pump, m = 412-kgWeight of a body is equal to the mass of the body times (m) acceleration due to gravity (g) on that surface.
W = mg …… (2)
We know that that, the value of acceleration due to gravity (g) on the surface of earth is 9.81 m/s2.
So putting the value of m and g in equation (2), weight of the heat pump would be,
W = mg
= (412-kg) (9.81 m/s2)
= (4041.72 kg. m/s2) (1 N/1 kg. m/s2)
= 4041.72 N
Rounding off to three significant figures, mass of heat pump would be, 4040 kg.
Thus from the above observation we conclude that, mass of heat pump is 412-kg and weight of snow mobile is 4040 N.


5 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