If a 3 kg block is pulled along a level. surface by a horizontal force of 15N at constant velocity. What is the coefficient of kinetic friction between the block and the surface?​

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

Newtons view of arrangement of the universe. don't copy from anywhere.

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.