A 25 kg child on a swing 2 m long is released from rest when the swing supports make an angle of 30° with the vertical.
a. Neglecting friction, find the child's speed at the lowest
position

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

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