0
11)
What is the work needed to be done to increase the velocity of a car from 30
Kmh-1 to 60 Kmh-1 if the mass of the car is 1500 Kg.
The sum of the kinetic and potential energies of an obiect is called it
Answers
Answered by
0
Answer:
The work needed to be done is 675 kJ.
the sum of the Kinetic and potential energies of an object is called its mechanical energy.
Answered by
1
Answer:
initial velocity 4=30km/h = 30×5/18 = 25/3 m/s
final velocity v = 60 km/h = 60×5/18= 50/3 m/s
mass = 1500 kg
work done w = 1/2 mv2 - 1/2 mv2
w = m/2 (v2-v2) = 1500/2 × [(50/3)2 - (25/3)2]
156187 j
the sum of kinetic and potential energy of an object is called mechanical energy
Similar questions