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Thepotemich [5.8K]
3 years ago
9

If the brakes are applied and the speed of the car is reduced to 13 m/s in 17 s , determine the constant deceleration of the car

.
Physics
1 answer:
Svetlanka [38]3 years ago
8 0

Question:  Initially, the car travels along a straight road with a speed of 35 m/s. If the brakes are applied and the speed of the car is reduced to 13 m/s in 17 s, determine the constant deceleration of the car.

Answer:

1.29 m/s²

Explanation:

From the question,

a = (v-u)/t............................ Equation 1

Where a = deceleration of the car, v = final velocity of the car, u = initial velocity of the car, t = time.

Given: v = 13 m/s, u = 35 m/s, t = 17 s.

a = (13-35)/17

a = -22/17

a = -1.29 m/s²

Hence the deceleration of the car is 1.29 m/s²

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A sound wave has a speed of 330m/s and a wavelength of 0.372 m. what is the frequency of the wave?
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