We are given that when a physical quantity A is multiplied with velocity, the resulting quantity is B, and we are told that B is energy. Our task is to determine what A is.
Energy (\(E\)) is related to momentum (\(p\)) and velocity (\(v\)) by the equation:
\[ E = p \times v \]
Where: - \(E\) is energy, - \(p\) is momentum, - \(v\) is velocity. From this equation, we can deduce that A must be momentum, as multiplying momentum with velocity results in energy.
The correct answer is momentum.
Correct Answer: (B) momentum
The velocity (v) - time (t) plot of the motion of a body is shown below :
The acceleration (a) - time(t) graph that best suits this motion is :
A wheel of a bullock cart is rolling on a level road, as shown in the figure below. If its linear speed is v in the direction shown, which one of the following options is correct (P and Q are any highest and lowest points on the wheel, respectively) ?