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Think about the definition of acceleration - it is the rate of change of velocity. Your statement that the object's speed is constant is correct, can you think about why the object's velocit...

Angle through which the earth rotates = 2pi

Time to do so = 246060 = 86400s

Angular velocity = 7.3x10^-5rads^-1

Lets consider a skydiver jumping from an airplane. Once the skydiver has let go of the plane they are pulled towards the earth due to gravity.

By Newton’s second law:

F = ma,

the sky ...

When something emits light, the waves produced usually have their oscillation moving at all different angles. You can have some oscillating left and right, up and down, at a 45-degree angle, or any angle ...

First, find the speed of the ball in the horizontal (x) and vertical (y) directions. u_x = ucos(30) = 8.66m/s and u_y = usin(30) = 5 m/s. Using an appropriate suvat equation f...