Some people say that the “force of inertia” (and “force of momentum”) throws the passengers forward when a car brakes sharply. what is wrong with this explanation

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.