Question

LEARN MORE REMARKS This example emphasizes the independence of the x- and y components in projectile motion problems. QUESTION How does the magnitude of the velocity vector at impact compare with the magnitude of the initial velocity vector? O It is greater at impact. They are the same since the magnitude of the vertical component of velocity is the same at each height on the way up and on the way down. O It is greater initially O They are the same since the ball during its flight has an upward acceleration as its height increases and a downward acceleration on its way down. PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown so that its initial vertical and horizontal components of vel estimate the ball's total time of flight and the distance it traverses before hitting the ground. (Use 10 m/s2 as the acceleration of gravity.) Time ocity are 30 m/s and 15 m/s, respectively. Use a motion diagram to HINTS: GETTING STARTED I TM STUCK EXERCISE A ball is thrown so that its initial vertical and horizontal components of velocity are 30 m/s and 15 m/s, espectively Estimate the maximum height the ball reaches. (Use 10 m/s2 as the acceleration of gravity.) Need Help?Read

Answer 1

When a body moves in a projectile motion we can use equations of motion with constant acceleration to find values like time of flight, range of projectile, maximum height reached.

Calculation and explanation is shown below.