A train is moving towards north. At one place it turns towards north-east, here we observe that
The radius of curvature of outer rail will be greater than that of the inner rail
The radius of the inner rail will be greater than that of the outer rail
The radius of curvature of one of the rails will be greater
The radius of curvature of the outer and inner rails will be the same
A tachometer is a device to measure
Can you associate vectors with $(a)$ the length of a wire bent into a loop, $(b)$ a plane area, $(c)$ a sphere ? Explain.
A car goes around uniform circular track of radius $R$ at a uniform speed $v$ once in every $T$ seconds. The magnitude of the centripetal acceleration is $a_c$. If the car now goes uniformly around a larger circular track of radius $2 R$ and experiences a centripetal acceleration of magnitude $8 a_c$. Then, its time period is
Two particles each of mass $m$ are moving in horizontal circle with same angular speed. If both string are of same length then the ratio of tension in string $\frac{T_1}{T_2}$ is .........
When a body moves with a constant speed along a circle