Physics

Problem

A scooter is moving along a straight road. Its velocity increases uniformly from

5\,\text{m/s}

20\,\text{m/s}

in the first

3\,\text{s}

and then continues to increase with the same acceleration for the next

4\,\text{s}

. Answer the following: a. (a) Calculate the scooter’s acceleration during the first

3\,\text{s}

. b. (b) Using a velocity–time graph or otherwise, determine the displacement covered in the first

3\,\text{s}

. c. (c) Find the velocity of the scooter at the end of

7\,\text{s}

from the start of the motion.