Sebuah kereta dengan kelajuan 50 m/s diberhentikan apabila breknya ditekan. Sesaran yang dilalui sebelum berhenti ialah 150 m. Berapakah nyahpecutan kereta itu?​

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Are formed where bumps from two surfaces come into contact ?

The two way interaction between aspects of the environment and aspects of the individual in the shaping of personality traits is called?