Aman hits a ball and provides it with an initial velocity of 5.0 m/s on a rough horizontal surface. due to the surface the ball slows down with an acceleration of 0.5 m/s^2 . when the ball is hit, a dog wihch is 1.0 m behind the man runs with acceleration 1.5 m/s^2 starting from the rest to catch the ball.

a) when does the dog catch the ball?
b)how far away from the dog's initial position, does the dog catch the ball?
c)what is the speed of the ball and the dog when the dog catchesthe ball?

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion