Projectile

Without air resistance, What will be the time for a vertically tossed ball to return to where it was thrown?

• -9.8 m/s for every second in the air.

• the same as the time going upward.

• less than the time going upward.

• more than the time going upward.

A baseball was pitched at a velocity of 4m/s. What will be the ball's horizontal velocity when it reach the maximum height?

• 0 m/s

• 2m/s

• 4m/s

• 6m/s

Which among them is a factor in affecting the flight of a projectile?

• Final Velocity

• Initial velocity

• Angle of release

• Time

In a projectile motion, the magnitude and direction of the horizontal component is always constant. What is the relationship on the magnitude and direction in the vertical component?

• Magnitude: Changing, Direction: Constant

• Magnitude: Changing, Direction: Changing

• Magnitude: Constant, Direction: Constant

• Magnitude: Constant, Direction: Changing

Alexis tries to hit the bull’s eye on the wall. As an observer, you see that he aims the dart higher than the target and hits the bull’s eye. What is the concept behind this?

• Alexis aims higher because gravity will affect the flight of the dart.

• Alexis aims higher because there is air resistance present.

• Alexis aims higher because it seems right.     

• Alexis aims higher for the angle to 45°

A coin is thrown in a projected manner and another coin with the same mass is dropped with the same height as the first coin. Which coin will fall faster? (neglecting air resistance)

• The coin projected.

• The coin in freefall.

• It cannot be determined.

• Both will fall at the same time.

At what point in its vertical path does a projectile have minimum speed?

• At the ground

• At the maximum height

• At the beginning of the projectile

• At the maximum horizontal range

A physics book slides off a horizontal tabletop with a speed of 1.10 m/s. It strikes the floor in 0.35 s. Ignoring Air resistance; How far from the base of the table will the book land?

• 0.39 m

•   0.50 m

• 0.60 m

• Insufficient data.

• Yes, Anna will be hit at 4.32 s. 

• Yes, Anna will hit at 7.21 s.

•   Yes, Anna will hit at 9.31 s.

• No, Anna is not hit.

A ball launched into the air at 45° to the horizontal initially has____

• an equal horizontal and vertical components.

•   a components that do not change in flight.

•   a components that affect each other throughout flight.

• a greater component of velocity than the vertical component.