Find Tuition/Enrichment Centres

AskQ logo

STUCK ON HOMEWORK?

ASK FOR HELP FROM OUR KIASUPARENTS.COM COMMUNITY!

Question

Is the given explanation correct ?

Confused, need further explanation. Thank you very much for your help.

Answer

The graph plotted is for the ball, not for the car.

When the surface is very smooth, the rolling ball will be able to cover a long distance in a short time before stopping.  The ball has no brakes. So Surface P with the longest distance in thr shortest time is the one with thr smoothest surface (this is shown on the graph, distance travelled is almost 6km in less than 25s)

Therefore, a car travelling on this Surface P will thus have the longest braking distance.

1 Reply 2 Likes ✔Accepted Answer

Good explanation.  Thank you very much !

0 Replies 0 Likes
Find Tuition/Enrichment Centres