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Luden [163]
3 years ago
13

A particle confined to a motion along the x axis moves with a constant acceleration of 2.5m/s2. Its velocity at t=0s is 6m/s. Fi

nd its velocity at t=4s.
Physics
1 answer:
morpeh [17]3 years ago
6 0

Answer:

v = 16 m/s

Explanation:

It is given that,

Acceleration of a particle along x -axis is 2.5\ m/s^2

At t = 0s, its velocity is 6 m/s

We need to find the velocity at t = 4 s

It means that the initial velocity of the particle is 6 m/s

Let v is the velocity at t = 4 s

So,

v = u + at

v=6+2.5\times 4\\\\v=16\ m/s

So, the velocity at t = 4 s is 16 m/s.

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HELP!!!!!!!!!
Irina18 [472]

Answer:

4.096 kW

Explanation:

Applying,

P = Fvcos∅................. Equation 1

Where P = Power of the motor, F = Force exerted on the motor, v = Velocity, ∅ = angle.

From the question,

Given: F = 500 N, v = 10 m/s, ∅ = 35°

Substitute these values into equation 1

P = 500×10×cos35°

P = 4095.8 W

P = 4.096 kW

Hence the power rating of the moto in kW is 4.096 kW

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