LONG EXAM

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

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.

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

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.

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.

How can you describe the motion on the horizontal axis if you ignore air resistance?

• acceleration due to gravity
• constant velocity
• varying acceleration
• motionless

As a ball rolls across a table it has a constant horizontal velocity. When the ball rolls off the table the horizontal velocity...

• Stays the same
• Accelerates at -9.8 m/s²
• Accelerates at an unknown value
• Becomes zero

A ball rolls off of a horizontal table and falls to the ground. The instant the ball leaves the table its vertical velocity is...

• -9.8m/s
• Unknown
• 0m/s
• 9.8m/s

A ball is rolling across a table with a horizontal velocity of 2m/s. It rolls off a table that's 2m tall. How far does the ball land away from the table (Δx)?

• 1.26 m Away
• 4.13 m Away
• 0.98 m Away
• 3.45 m Away