6. Intro to Forces (Dynamics)
Forces & Kinematics
6. Intro to Forces (Dynamics) Forces & Kinematics
11PRACTICE PROBLEM
A professional football player kicks a 450 g ball at a speed of 90 km/h. The goalkeeper stops the ball with his hands and brings it to rest in 0.5 s. Calculate the strength of the force applied by the goalkeeper to stop the ball.
A professional football player kicks a 450 g ball at a speed of 90 km/h. The goalkeeper stops the ball with his hands and brings it to rest in 0.5 s. Calculate the strength of the force applied by the goalkeeper to stop the ball.