Projectile Motion Practice Problems
#1: A ball is fired from a launcher with an initial velocity of 20.0 m·s -1 at an angle of 30.0° to the horizontal. What is the range of this projectile? What is its maximum height? What is the total time of flight?
Solution:
#2 A cannon fired a projectile so that it hit a target 1.20 km away. The projectile was fired at an angle of 74.8° from the horizontal, and was in the air for a total of 30.0 s. What was the initial launch velocity? What is the maximum height reached by this projectile?
#3 An air cannon shot a potato so that it reached a maximum height of m and landed (at the height from which it was launched) m away. Find the following values: Initial vertical velocity Initial horizontal velocity Overall initial velocity Total flight time Angle at which it was launched
#4 A cannon is at the top of a 60.0 m high cliff, and fires at a castle on top of a nearby cliff that is m high. The cannon and castle are separated by a m wide valley. If the cannonballs hit the castle 20.0 s after they were fired, determine the following values: Initial horizontal velocity Initial vertical velocity Maximum height above launch position Maximum altitude Total time in the air