Q1. A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits other kid 2.4 away squares in the back, at a point 0.85 above the ground. What was the initial speed of the water?
Q2. A 300 block on a 60 -long string swings in a circle on a horizontal, frictionless table at 60. What is the speed of the block?
Q3. A car is travelling at 43.0 km/h on a flat highway.
(a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?
(b) What is the stopping distance when the surface is dry and the coefficient of friction is 0.610?