A block starts at rest and slides down a frictionless track except for a small rough area on a horizontal section of the track(as shown in the figure below). It leaves the track horizontally, flies through the air, and subsequently strikes the ground. The acceleration of gravity is 9.8 m/s².

a) What is the speed of v of the block when it leaves the track? Answer in units of m/s.

b) What is the horizontal distance x the block travels in the air? Answer in units of m.

c) What is the total speed of the block when it hits the ground? Answer in units of m/s.

The acceleration of gravity is 9.8 m/s2. 414 g V K 3.9 m -> K X 1.5 m 2.3 m u=0.3