What is the angle θ with the vertical from which a ram should be released to strike an object with a horizontal velocity of 5 m/s, given its dimensions and the gravitational acceleration g = 9.81 m/s²?

35.1º

Fill in the blank: The principle used to determine the height from which a ram must be released is known as the ______.

Principle of Conservation of Energy

True or False: In a perfectly elastic collision, the momentum of the colliding bodies is conserved.

True

If a spherical ball weighing 2 kg is dropped from a height of 4.9 m, what is its downward velocity just before impact?

9.8 m/s

Riddle: I fall freely from a height, gaining speed as I go, and upon hitting a rigid block, I bounce back with no loss. What am I?

A perfectly elastic ball

What is the momentum vector of a 2 kg spherical ball just after impact if it reaches a velocity of 9.8 m/s downwards?

19.6 kg m/s

Fill in the blank: During an elastic collision, the relative velocity of approach equals the relative velocity of ______.

Separation

True or False: The velocity component perpendicular to the line of impact is affected during an elastic collision.

False. The velocity component perpendicular to the line of impact remains unchanged.

What angle does the velocity of the ball make with the line of impact if it is 30º at the moment of collision?

60º

In the context of a collision, if the angle of impact is 30º, what is the angle of separation relative to the vertical?

60º