Question
Asked Feb 15, 2020
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If an object is accelerating at a rate of 25 m/s2, how long (in seconds) will it take to reach a speed of 550 m/s? (Assume an initial velocity of zero.)
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Expert Answer

Step 1

Given:

Accelerating rate (a) = 25 m/s2.

Final velocity (v) = 550 m/s.

Initial velocity (u) = 0 m/s.

 

Step 2

The first equation of kinematic is,

Physics homework question answer, step 2, image 1

where,

v = final velocity.

u = initial velocity.

a = acceleration.

t = time.

Step 3

Time taken by an object to reach at 550 m/s,

Physics homework question answer, step 3, image 1

...

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