3 years ago

If a car is going 60 MPH in 2.2 seconds, What is the acceleration of that car?

Physics

1 answer:

Burka [1]3 years ago

5 0

Answer 0-60=2.2sec

Explanation:

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lozanna [386]

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3 years ago

This question is typical on some driver’s license exams: A car moving at 45 km/h skids 15 m with locked brakes. How far will the

sergiy2304 [10]

from kinematics equation if we know that final speed is ZERO and initial speed is given that due to constant deceleration the object will stop in some distance "d" and this distance can be calculated by kinematics

$v_f^2 - v_i^2 = 2 a d$

$0 - v^2 = 2(a)d$

here acceleration due to friction will be same at all different speed

so for 45 km/h speed the distance of stop is 15 m

while at other speed 112.5 km/h the distance will be unknown

now we will have

$0 - 45^2 = 2(a)15$

$0 - 112.5^2 = 2(a)d$

now divide above two equations

$\frac{45^2}{112.5^2} = \frac{15}{d}$

$d = 93.75 m$

So it will stop in distance 93.75 m

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3 years ago

Please help! i'm horrible at this

frez [133]

Answer:

a = Δv/t = (vf - vi)/t = (0 - 5)/4 = -1.25 m/s²

Explanation:

You may or may not need the negative sign, depending on how the question designer was thinking about the problem.

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4 years ago

The wavelength of light in a medium is ____ the wavelength of light in a vacuum. Question 10 options: longer than shorter than e

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Answer:

Explanation:

Shorter than is the answer. Correct on the test!

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3 years ago

La pista de un juguete tiene un tramo horizontal seguido de otro que presenta una subida; si se lanza un cochecito de 80 g de ma

MaRussiya [10]

Answer:

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3 years ago