please solve all the questions correctly !!! 1. (3 points) If the component of v

Question

please solve all the questions correctly !!!

1. (3 points) If the component of vector A along the direction of vector B is zero, what can you conclude about the two vectors? 2. (3 points) Consider the following combinations of signs and values for velocity and accelera tion of a particle with respect to a one-dimensional x axis and determine which are physically possible. Velocity Acceleration (a) Positive Positive (b) Positive Negative (e) Positive Zero (d) Negative Positive (e) Zero Negative 3. (3 points) A sailor drops a wrench from the top of a sailboat?s mast while the boat is moving rapidly and steadily in a straight line. Ignoring air resistance, where will the wrench hit the deck? (a) in front of the mast . (b) behind the mast (c) at the base of the mast

Explanation / Answer

1) Their directions are perpendicular.

2)
a) Positive Positive : Speeding up as it travels east
b) Positive Negative : Slowing down as it travels east.
c) Positive Zero : Travelling east at a constant speed.
d) Negative Positive : Slowing down as it travels west.
e) Zero Negative : Just began to speed up in the west direction

3)
Answer is c, at the base of the mast. This is because the wrench has the same forward inertia as the boat. Since the boat is traveling at a steady pace, then that doesn't change for the wrench as it drops.

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