Hey, i been trying to ask all my friends and trying to read the book over and over. Im having problems with physics, its really hard! I have some questions that im stuck at. I got the basics that F=ma but can someone help me get which equations to use for these questions? Thank you, i have the answers to the questions but i would like to know how to do them thank you again a 0.140 kg baseball travels at 35 m/s that strikes the catchers mitt that brings the ball to a stop. It recoils backward at 11.0cm. What is the average force applied by the ball on the glove. I used the basic law and found force of the baseball is 4.9N now where do i input the 11cm? a race car can finish a 402 track in 6.40seconds from rest, how many g's does the driev feel? if combined with mass of the driver and race car is 485kg what horizontal force must the road exert on the tires. Im really stuck on the how many g's does he feel and what force is exert on the tires. i dont need the answers, just need help on how do i go about analyizing which equations to use for questions. THANK YOU!