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Scorpion4ik [409]
3 years ago
14

A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from zero to 5.27 m

/s in 0.833 s. What linear impulse and average force does a 69.8 kg passenger in the car experience
Physics
1 answer:
jeyben [28]3 years ago
5 0

Answer:

See explanation

Explanation:

From Newton's law; the rate of change of momentum is proportional to the impressed force. Hence;

F.t = mv- mu

F= force

t= time

m= mass

V= final velocity

u = initial velocity

since u = 0, mv= 0

F= MV/t

F= 69.8 × 5.27/0.833

F= 442 N

Impulse = Ft= 442 × 0.833= 368 Ns

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Explanation:

Given parameters:

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Unknown:

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Solution:

According to newton's third law of motion "action and reaction are equal and opposite".

The force with which the truck struck the fence is the same as the force the fence acted on the truck with but in another direction.

 From newton's second law:

      Force  = mass x acceleration

      We know that acceleration is the change in velocity with time;

   acceleration = \frac{change in velocity }{time }

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learn more:

Newton's laws brainly.com/question/11411375

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Answer:

Efficiency of a machine is how well the machine works and what the machine is capable of doing.

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6 0
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