The speed of a bus increases uniformly from 15 ms-1 to 60 ms-1 in 20 sec. calculate the average speed, the acceleration and the distance travelled during the entire period

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m