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Murljashka [212]
3 years ago
9

A car traveling 35 km/hr accelerates to a speed of 45 km/hr in .25 hr. What is its acceleration

Physics
1 answer:
ahrayia [7]3 years ago
6 0

Answer:

a=40Km/hr^2

Explanation:

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A particle makes 800 revolution in 4 minutes of a circle of 5cm. Find
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ii) The angular velocity is approximately 20.94 rad/s

iii) The linear velocity is approximately 1.047 m/s

iv) The centripetal acceleration is approximately 6.98 m/s²

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The given parameters are;

The number of revolution of the particle, n = 800 revolution

The time it takes the particle to make 800 revolutions = 4 minutes

The dimension of the circle = 5 cm = 0.05 m

Given that the dimension of the circle is the radius of the circle, we have;

i) The period of the particle, T = The time to complete one revolution

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The period, T = 3/10 seconds = 0.3 seconds

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