Q1. If a car travelling at 64 km/h will skid 24 m when its brakes lock, how far will it skid if it is travelling at 140 km/h when its brakes lock?
Q2. An arrow is shot from a bow at an angle of 36º above the horizontal with the initial speed of 50.00 m/s. What are the arrow's horizontal (x) and vertical (y) components?
Q3. Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its kinetic energy was 6.08 × 10^4 J, what was its mass?