The time of the rock in flight is 10.71 s.
What is time of flight?
This is the total time taken for an object or a projectile to return back to the same plane at which it was projected.
To calculate the time of the rock in flight, we use the formula below.
Formula:
- v = u+gt............. Equation 1
Where:
- v = Final final velocity
- u = Initial velocity
- t = time of the rock in flight.
- g = acceleration due to gravity
make t the subject of the equation
t = (v-u)/g.................... Equation 2
From the question,
Given:
- u = 10 m/s
- v = 115 m/s
- g = 9.8 m/s².
Substitute these values into equation 2
- t = (115-10)/9.8
- t = 105/9.8
- t = 10.71 s
Hence, the time of the rock in flight is 10.71 s.
Learn more about the time of flight here: https://brainly.com/question/4441382
