A vehicle is travelling with uniform speed along a concave road of radius of curvature `19.6m`. At lowest point of concave road is the normal reaction on the vehicle is three times its weight, the speed of vehicle is

A vehicle is moving with uniform speed along horizontal, concave and convex surface roads. The surface on which, the normal reaction on the vehicle is maximum is

A vehicle is travelling along concave road then along convex road of same radius of curvatures at uniform speed. If the normal reactions on the vehicle as it crosses the lowest point of concave surface, highest point of concave surface, highest point of convex surface are 1.5 xx 10^(4) N, 3 xx 10^(3) N respectively, then the mass of vehicle is (g = 10 m//s^(-2)) .

A car is moving with uniform speed along horizontal, concave and convex shaped roads. The surface of the road on which, the normal reaction on the car is maximum is

A vehicle is moving at a speed of 30 m/s on a circular road of radius 450 m. Its speed is increasing at a rate of 2 m/s^2 . The acceleration of particle at this instant is

A vehicle is moving at a speed of 30 m/s on a circular road of radius 450 m. Its speed is increasing at a rate of 2 m/s^2 . The acceleration of particle at this instant is

A wheel of radius 2.1 m of a vehicle makes 75 revolutions in one minute. What is the speed of the vehicle ?

A particle moves along on a road with constant speed at all points as shown in figure. The normal reaction of the road on the particle is :