Questions for Unit 3
Q 1 : Two people pull on a stubborn mule. One pulls with a force of 100 Newtons at an angle of 50 degrees above the positive x-axis and the other pulls with a force of 70 Newtons at an angle of 70 degrees above the negative x-axis. What is the single force that is equivalent to the two forces?
Q 2 : A place kicker must kick a football from a point 40 meters from the goal, and the ball must clear the crossbar, which is 3.05 meters high. When kicked, the ball leaves the ground with a velocity of 25 m/s at an angle of 50 degrees. By how much does the football clear the crossbar or miss the crossbar?