physic

links 
Exercise 1 Simulation – Moving man 
https://phet.colorado.edu/sims/cheerpj/moving-man/latest/moving-man.html?simulation=moving-man

Exercise 2 Simulation – Ladybug motion

https://phet.colorado.edu/sims/cheerpj/ladybug-motion-2d/latest/ladybug-motion-2d.html?simulation=ladybug-motion-2d

Exercise 3 and 4 Simulation – Projectile motion

https://phet.colorado.edu/sims/html/projectile-motion/latest/projectile-motion_en.html