Calculate the time (in seconds) needed for a car to accelerating from 0 m/s to 10 m/s at 5 m/s2?

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e