Abowling ball is launched from the top of a building at an angle of 10° above the horizontal with an initial speed of 16 m/s. the ball lands on the ground 2.5 s after it is launched. what is the height of the building (in m)?

height of the building, h = 23.68 m

Given:

angle,

initial speed, u = 16 m/s

time, t = 2.5 s

Solution:

To calculate the height of the building, we use second eqn of motion where, in falling down acceleration is acceleration due to gravity acting in the downward direction and vertical component of velocity usin is considered and the distance travelled is the height of the body:

Putting the values in the above eqn:

h =  23.68 m            

pretty sure it's false

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me