The co-ordinates of a moving particle at any time 't' are given by x= t^ 3 and y= t^ 3 …
Physics · NEET · NTA Exams — Kinematics
The co-ordinates of a moving particle at any time 't' are given by \(x=\pi t^{3}\) and \(y=\beta t^{3}\). The speed of the particle at time t is given by
- \(\sqrt{a^{2}+\beta^{2}}\)
- \(t^{2} \sqrt{x^{2}+\beta^{2}}\)
- \(3 t \sqrt{x^{2}+\beta^{2}}\)
- \(3 t^{2} \sqrt{a^{2}+\beta^{2}}\)
Answer
(D) 3 t^ 2 a^ 2 + ^ 2
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- In the arrangement, shown in the figure, the ends P and Q of a stretchable string move downwards with uniform…
- A truck travelling due north at 20 m/s turns west and travels at the same speed. The change in its velocity…
- Consider a car moving along a straight horizontal road with a speed of 72 km / h . If the coefficient of…
- A car is moving uniformly at a constant velocity of 40 km/h, then its acceleration is
- Assertion : Two bodies of masses M and m ( M > m ) are allowed to fall from the same height if the air…
- A particle moves such that its position vector r (t)= t i + t j where is a constant and t is time. Then which…
- A car is traveling at 72 km/h and is 20 m from a barrier when the driver puts on the brakes. The car hits the…
- A body moving in one direction covers 20 m in the 4th sec and 12 m in the 2nd sec. The distance covered by…