PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
To launch a 0.50kg toy rocket, a device exerts a vertical force that changes with time as follows. Starting from zero, the force rises uniformly to 600N in time t1, stays constant at 600N for the next 0.010s, and then falls uniformly back to zero in the same time t1. The force is directed upward throughout the contact.
(i) The required change in momentum for a successful launch is 12Ns. Calculate the value of t1 that achieves this requirement.
(ii) Using your result from (i), determine the average force acting on the rocket during the entire contact interval.
(iii) Compute the speed imparted to the rocket as it leaves the launcher.