Physics of a Fastball

What happens to a bullet or a ball when it is shot or thrown horizontally?

• It accelerates horizontally.

• It drops due to gravity.

• It rises upwards due to air resistance.

• It travels in a straight line indefinitely.

What is the horizontal velocity of the fastball thrown by the pitcher?

• 60 meters per second

• 30 meters per second

• 40 meters per second

• 50 meters per second

How far is the catcher from the pitcher in the problem setup?

• 18.4 meters

• 10.4 meters

• 30.4 meters

• 25.4 meters

Which equation is used to calculate the time of flight in horizontal motion?

• v^2 = u^2 + 2as

• s = ut + 0.5at^2

• v = u + at

• x = vt

What is the acceleration due to gravity used in the calculations?

• 9.8 meters per second squared

• 11.8 meters per second squared

• 8.9 meters per second squared

• 10.8 meters per second squared

What is the final vertical velocity of the ball after 0.46 seconds?

• 4.51 meters per second

• 5.51 meters per second

• 6.51 meters per second

• 7.51 meters per second

What is the vertical displacement of the ball during its flight?

• 2.04 meters

• 1.54 meters

• 1.04 meters

• 0.54 meters

Which variable is zero in the vertical motion of the ball?

• Displacement

• Initial velocity

• Acceleration

• Final velocity

What is the alternative method used to calculate the drop of the ball?

• Using the equation v = u + at

• Using the equation x = vt

• Using the equation v^2 = u^2 + 2as

• Using the equation s = ut + 0.5at^2

Why is the alternative calculation method considered convenient?

• It provides a more accurate result.

• It eliminates the need for initial velocity.

• It uses a different set of units.

• It requires fewer steps.