Question

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when brakes are applied to a car moving with a velocity of 54 km^-1 it comes to rest within 2 metre. calculate the frictional resistance if mass of the car is 150 kg​

Answer 1

Answer:

Photosynthesis is the process by which green plants turn carbon dioxide and water into food using energy from sunlight.

Step-by-step explanation:

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Answer 2

Answer:

Mass of the car =2400 kg

Initial velocity u=20 m/s

Final velocity v=0 m/s

Time t=10s

Retardation a=

t

v−u

=

10

0−20

=−2m/s

2

Force =m×a=2400×2=−4800N.