Saved Bookmarks
| 1. |
A car is moving with a speed of 10 ms-1 on a circular track of radius 25 m. If its speed is increasing at the rate of 3 ms-1, its resultant acceleration is(a) 2.5 ms-1(b) 5 ms -1(c) 7.5 ms -1(d) 10 ms-1 |
|
Answer» if it helps PLEASE MARK IT AS BRAINLIESTExplanation:TANGENTIAL ACCELERATION:at =3m/s Centripetal acceleration:ar = v^2/r=100/25=4 ∴ Net acceleration =√3^2+4^2=5 ms^-1 |
|