What is the change in momentum of a car weighing 1200 kg when its speed increases from
Answers
Answer:
Voltage, electric potential difference, electromotive force, electric pressure or electric tension is the difference in electric potential between two points, which is defined as the work needed per unit of charge to move a test charge between the two points. Wikipedia
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Answer:
We know that :
Momentum = mass × velocity
= m × v
Here, mass, m = 1500 kg
And, velocity, v = 36 km/h
=
36×10003600
=
36×10003600
=
36×1036
= 10 m/s
Putting these values in the above formula, we get:
Initial Momentum = 1500 × 10 kg.m/s = 15000 kg.m/s
Also, we know that:
Momentum = mass × velocity
= m × v
Here, mass, m = 1500 kg
And, velocity, v = 72 km/h
=
72×10003600
=
72×10003600
=
72×1036
= 20 m/s
Putting these values in the above formula, we get:
Final Momentum = 1500 × 20 kg.m/s = 30000 kg.m/s.
The change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h = 30000 kg.m/s − 15000 kg.m/s = 15000 kg.m/s.