Q1. 35 kg girl is bouncing on a trampoline. Throughout a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 170 J from 470 J. How high does she rise during this interval? Avoid air resistance.
Q2. Water flows at 5.00 L/s through a horizontal pipe that narrows smoothly from 10cm diameter to 5.00 cm diameter. A pressure gauge in narrow section reads 50kPa. What does the other pressure gauge read?