Answer:
B
Explanation:
i just guessed and got it right on the a p e x quiz
Answer:
Eating breakfast then walking to the bus
Answer:
1.67 m/s
Explanation:
Since this is an inelastic collision (the block and the arrow stick together after the collision), we can solve the problem by using the law of conservation of momentum:
where
is the mass of the arrow
is the initial speed of the arrow
is the mass of the block
is the initial speed of the block
is the final speed of the arrow+block
Substituting and re-arranging the equation, we find:
When an object vibrates in simple harmonic motion in the vertical direction, its minimum speed occurs when it is at <em>either endpoint</em> ... either the highest point or the lowest point.
At those points, it reverses its direction, so its speed is zero for an instant.
Answer:
Newtons third law
Explanation:
Because it states that every force has an equal and opposite force