A car is moving along a circular arc at a speed of 20 ms-1 . The radius of the arc is 10 m. If the speed is increased at the rate of 30 ms-2, what is the resultant acceleration ?

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

10 m s-2

50 m s-2

70m s-2

250m s-2

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Here, ar=v2r=20×2010=40ms−2ar=30ms−2a=ar2+at2=302+402=50ms−2Hence (2) is the choice

Watch 3-min video & get full concept clarity