Hello, I need help with physics. Thank you!

Test Content Question 1 1 Point A cannon is mounted on wheels and is at rest. It shoots a 7 kg ball with a velocity of 6.4 m/s. The cannon has a mass of 6.3 kg. What is the recoil velocity of the cannon? Leave your answer to 1 decimal place. Add your answer Question 2 2 Points You are coding a 2D NFL game. The player with the ball is 84 kg and is running at (2, 29) px/s. The opponent is 81 kg and runs at (29, 4) px/s to make the tackle. What is the magnitude of the final velocity vector (the scalar speed, so just a number) of both players together immediately after the tackle? Leave your answer accurate to 2 decimal places. Add your answer Question 3 1 Point You are coding a game like Street Fighter. Player 1 has a mass of 111 kg and is standing still. Player 2 shoots a fireball which successfully damages the other player and delivers an impulse of 1394 kg m/s. How fast will the victim go flying? Leave your answer to 1 decimal place. Add your answer Additional content You can add text, images, and files here