A 27 kg child sits in a swing supported by two chains, each 4 m long. The acceleration of gravity is 9.8 m/s 2 . If the tension in each chain at the lowest point is 159 N, find the child’s speed at the lowest point. Note: Neglect the mass of the seat. Answer in units of m/s.

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

Ways that industry and agriculture use physical properties to separate substances

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.