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2 years ago

13

What is the acceleration of a train that takes 22 seconds to go from a speed of 73 kilometers per hour to a speed of 45 kilomete

rs per hour?

1 answer:

gladu [14]2 years ago

4 0

Answer:

.354 m/s^2

Explanation:

Acceleration is change in velocity divided by change in time

(73 - 45 ) = 28 km / hr velocity change this is 7.778 m/s

7.778 m/s / 22 s = .354 m/s^2

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N76 [4]

Hey There!

Your answer is on the inside bends!

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If you need anymore help with your work feel free to ask me!

Hope this Helps!

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3 years ago

-g A small block is attached to an ideal spring and is moving in SHM on a horizontal frictionless surface. The amplitude of the

Nina [5.8K]

Answer:

a= 92. 13 m/s²

Explanation:

Given that

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We know that maximum velocity in the SHM given as

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3 years ago

A yellow train of mass 100 kg is moving at 8 m/s towards an orange train of mass 200 kg traveling on the opposite direction on t

vladimir1956 [14]

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Initial Velocity of orange train = -1 m/s (since it moves opposite direction to the yellow train, we will put negative to show the opposite direction)

To calculate the initial momentum of both trains, we will use the principle of conservation of momentum which

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Since the question only wants the sum of initial momentum,

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2 years ago

Assuming 84.0% efficiency for the conversion of electrical power by the motor, what current must the 13.0-V batteries of a 716 k

tino4ka555 [31]

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Explanation:

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3 years ago

True or false. when objects collide , some momentum is lost

ycow [4]

Answer:

It is neither false nor true. When they collide some of one of the objects goes to the other object.

Explanation:

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3 years ago

Read 2 more answers