Question

A baseball is thrown down a hill. This baseball has on-board sensors that can measure its velocities in both the x- and y- directions. The data show that the ball took off with an initial velocity in the y-direction of +4.0 m/s and had a final velocity of –5.8 m/s. Calculate the hang time of the ball. [HINT: Believe it or not, it is possible to calculate hang time (the total time the projectile is in the air) by knowing only the initial and final velocities in the y-direction.]

Answer 1

Answer:1 s

Step-by-step explanation:

Given

Initial velocity in Y-direction
`v_1`=+4 m/s

Final Velocity in Y-direction
`v_2=-5.8 m/s`

Acceleration in Y-direction is 9.81
`m/s^2`

Using equation of motion

v=u+at

`-5.8=4+9.81* t`

`t=0.998 \approx 1 s`