Calculate the force required to impart to a car a velocity of 30m/s in 10 seconds starting from rest. The mass of the car is 1500 kg.
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HEY!!
Force = mass x acceleration
Intial Velocity , u= 0 ........ ( since the body starts from rest )
Final Veloctity , v= 30 m s-1
Time req. by the object = 10 seconds
acceleration = ( v - u ) / t = ( 30 - 0 ) / 10 = 3 m s -2
Mass of the body = 1500 kg.
Therefore force req. = mass x accelartion
1500 kg. x 3 m s-2
THE 4500 kgms-2
ANS) 4500 N ...... ( since 1 Newton = 1 kg m s-2 )
Force = mass x acceleration
Intial Velocity , u= 0 ........ ( since the body starts from rest )
Final Veloctity , v= 30 m s-1
Time req. by the object = 10 seconds
acceleration = ( v - u ) / t = ( 30 - 0 ) / 10 = 3 m s -2
Mass of the body = 1500 kg.
Therefore force req. = mass x accelartion
1500 kg. x 3 m s-2
THE 4500 kgms-2
ANS) 4500 N ...... ( since 1 Newton = 1 kg m s-2 )
Answered by
13
hope it helps
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