A car moves with a constant speed along a curved surface as shown. Which of the following pair best represents the directions of velocity and acceleration of the car at the instant when the car is at lowest position and going up?

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
$\to v$ is along tangent & a is $⊥$ to v for constant speed on curve.

Suggest Corrections

Similar questions

Q. Car A and car B start moving simultaneously in the same direction along the line joining them car A with a constant acceleration

a = 4 m / s^{2}

while car B moves with a constant velocity V = 1 m/s. At t = 0 car A is 10 m behind car B. Find the time when car A over takes car B.

Q. Two cars, initially at a separation of

12 m

, start simultaneously. First car "

A

", starting from rest, moves with an acceleration

2 {m/s}^{2}

, whereas the car "

B

" which is ahead, moves with a constant velocity

1 m/s

along the same direction. Find the time when the car "

A

" overtakes car "

B

A wooden plank of mass ‘m’ and dimensions $l \times b$ floats over a very shallow river of Thickness ‘T’ and viscosity $η$ . At the speed of the plank is $v_{0}$ . A car is at rest on the bank at this instant the plank is adjacent to the car which starts to move with a constant acceleration If after sometime when the speed of the plank is $\frac{v_{0}}{2} t$ . The car catches up with the plank t. (The car moves with a constant acceleration). Find the speed of the car at this instant when the car is crossing the plank