1. If you were to drop a ball, releasing it from rest, what information would be

Question

1.   If you were to drop a ball, releasing it from rest, what information would be needed to predict how much time it would take for the ball to hit the floor? What assumptions must you make?

2. If the ball in Question 1 is traveling at a known horizontal velocity when it starts to fall, explain how you would calculate how far it will travel before it hits the ground.

3.   A pair of computer-interfaced Photogates can be used to accurately measure the time interval for an object to break the beam of one Photogate and then another. If you wanted to know the velocity of the object, what additional information would you need?

Explanation / Answer

1)that planets gravity, how high up you are, the mass of the ball
Pe =mgh
Ke =1/2 mv^2

2)You would take the horizontal velocity and multiply it by the time it takes to hit the ground. That would give you the horizontal distance.

3)

The direction of the object ,and the distance between the photogates.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.