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2 years ago

A car initally at rest accelerates in a straight line at 3 m/s2 what will be its speed after 2 seconds

Physics

1 answer:

Ainat [17]2 years ago

5 0

Answer

In this Question we have given

acceleration, a=3m/s^2

and time, t=2s

we have to find speed, v=?

Apply newton's Ist equation of motion which goes as

$[tex]v =u + at\\ Here v is final velocity\\u - initial velocity\\a-acceleration\\t- time$ [/tex]

In this problem the car starts from rest it means initial velocity, u =0.

Putting values of u, a and t in first equation of motion

$v=0+3*2\\v=6m/s$

Therefore speed of car after 2 second will be 6m/s

Note: In this type of problems. First check the units of all quatities. As all the quantities must be first changed into matching units i.e cgs or s.i. units before applying the equation.

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inn [45]

Answer:

Explanation:

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3 years ago

What form of energy provides power for a gas stove?

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A gas stove uses chemical energy.
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3 years ago

Read 2 more answers

Help with this question plz and show how you got it :) tysm!

spayn [35]

The hardest part of the job is to find the right formula to use, and write it down. You've already done that ! The rest is just turning the crank until an answer falls out.

You wrote. E = m g h.
Beautiful.
Now divide each side by (g h), and you'll have the formula for mass:

m = E / (g h).

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2 years ago

A car interior is heated to 48 C by the sun What type of energy transfer?

Aneli [31]

Answer:

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Explanation:

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3 years ago

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