Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 9 Answered

A weightlifter lifts a weight of 10 kg weight in 10 seconds. Calculate the change in the momentum of the weight (g = 9.8 ms
Asked by 7039_parth | 08 Jul, 2021, 01:30: PM
answered-by-expert Expert Answer
Force is defined as rate of change of momentum
 
begin mathsize 14px style fraction numerator d left parenthesis m v right parenthesis over denominator d t end fraction space equals space F end style
where m is mass , v is velocity,  F is force and t is time
 
Hence change in momentum , d(mv) = F dt
 
To lift the 10 kg mass, minimum required force = 10 × 9.8 = 98 N
 
Since the force is applied for 10 s , change in momentum = 98 × 10 = 980 kg m/s
 

Answered by Thiyagarajan K | 08 Jul, 2021, 02:02: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 9 - Physics
How force is directly propotional to rate of change of momentum.
Asked by madhupandey6555 | 05 Jan, 2023, 05:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
a body freely falling from certain height.show graphically the relation between the distance fallen and square of time
Asked by sandipacme1 | 26 Jun, 2022, 05:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
a cricket ball of mass 150 gram moving at a speed of 25 ms-¹ brought to rest by a player in 0.03 seconds . Find the average force applied by the player.
Asked by aarshareny07 | 25 Jul, 2021, 11:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
A weightlifter lifts a weight of 10 kg weight in 10 seconds. Calculate the change in the momentum of the weight (g = 9.8 ms
Asked by 7039_parth | 08 Jul, 2021, 01:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
State Newton's second law of motion.What information do you get from it?  
Asked by Bhasharaj | 06 Oct, 2020, 10:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
tell me
question image
Asked by bishnoiladla | 06 Jul, 2020, 10:17: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
Prove ;mathematically ,F=ma
Asked by vishwadiprathod0070.9sdatl | 12 Jun, 2020, 08:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
find the mass of a body which can be balanced by a force of 39.2 N.
Asked by manojk30385 | 09 Apr, 2020, 12:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
Derivation between - Newton's first law,second law and third law.  
Asked by kartikvns3 | 04 Apr, 2020, 10:25: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Physics
An empty truck and a loaded truck moving with the same velocity .on applying brakes which truck will stop first and why
Asked by geethamuralimg | 07 Feb, 2020, 08:21: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×