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RideAnS [48]
3 years ago
9

A certain car is capable of accelerating at a rate of 10.60 m/s 2 . how long does it take for this car to go from a speed of 55

mi/h to a speed of 60 mi/h
Physics
1 answer:
LUCKY_DIMON [66]3 years ago
3 0
Given:
acceleration rate: 10.60 m/s²
1st speed: 55 mi/hr
2nd speed: 60 mi/hr

notice that they use different units. m/s² and mi/hr. We need to convert one unit to the other for uniformity and consistency.

1 m/s = 2.23694 mi/hr     OR    1 mi/hr = 0.44704 m/s

1st speed: 55 mi/hr → 55mi/hr * 0.44704 m/s / 1mi/hr = 24.5872 m/s
2nd speed: 60 mi/hr → 60mi/hr * 0.44704 m/s / 1mi/hr = 26.8224 m/s

Acceleration formula:
Acceleration = Change in velocity / time → Vf-Vi / t

10.60 m/s² = (26.8224 m/s - 24.5872 m/s) / t
10.60 m/s²  * t = 2.2352 m/s
t = 2.2352 m/s ÷ 10.60 m/s²
t = 0.2109 s. 

It would take 0.2109 seconds to change from 55 mi/hr to 60 mi/hr at 10.60 m/s² acceleration rate.

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U=10 m/s
v=30 m/s
t=6 sec

therefore, a=(v-u)/t
                   =(30-10)/6
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now, displacement=ut+0.5*a*t^2
                              =60+ 0.5*(10/3)*36
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v^2=u^2+2as
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Bottom of the water tower

Explanation:

When holes are drilled through the wall of a water tower, water will spurt out the greatest horizontal distance from the hole closest to the bottom of the water tower.

This is because the near the bottom of the tower is the greatest compared to other parts of the tower.

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Learn more:

Pressure brainly.com/question/4868239

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Answer:

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50 N / 500 g = 50 N / 0.500 kg = 100 m/s²

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