Q1. A wheel 38 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. How far will a point on the edge of the wheel have travelled in this time?
Q2. A 63 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.8 m/s.
If the trampoline behaves like a spring of spring constant 6.2×104 N/m, how far does he depress it?
Q3. A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narrowed to a 1.00 cm radius? The flow rate is 20.0π cm3/s