Ngan has a weight of 314.5 n on mars and a weight 833.0 n on earth. what is ngan's mass on earth?

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!