Question

Q1- I'm standing on a bridge 10 m above the water and have a small pebble in my hand and a large brick in the other. I drop them at the same time from the same height. Neglecting air resistance, which of these statements is true?

A) They hit the water at exactly the same time.

B) The brick splashes into the water way before the brick.

C) Not enough information to determine.

Q2- We haven't talked about this, but let's go back to the cannon question. Look at the picture. This is from an old old old physics book, but the rules are the same. Position 6 represents where the ball landed if shot from the cannon. Position 3 represents if the ball was dropped from the same height in which it was shot. If these two actions happened at the same time, a ball was dropped, and a ball was fired...the two cannaon balls would...

A) the ball dropped would hit the ground before the ball that was fired.

B) the ball fired would hit before the ball that was dropped

C) both balls would hit at the same time.

Q3- Under ideal conditions (no atmospheric interference of any kind), if I hit a golf ball at an angle of 25 degrees at an initial speed of 23 m/s, it will travel the same distance as a golf ball struck so it has an initial speed of 23 m/s at an angle of 65 degrees. What is the optimal "take off" angle for the long jump?

Answer 1

Dear student

As per HOMEWORKLIB POLICY I am answering the first question only. Thanks

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