Physics trajectory question?
You toss an apple across the room to a friend. Which of the following statements is true about the apple at the top of its trajectory?
A. Its acceleration is zero.
B. Its acceleration is 9.8 m/s2 down.
C. The horizontal component of its velocity is zero.
D. The vertical component of its velocity is 9.8 m/s down.
I believe it is B. Am I correct?
You toss an apple across the room to a friend. Which of the following statements is true about the apple at the top of its trajectory?
A. Its acceleration is zero.
B. Its acceleration is 9.8 m/s2 down.
C. The horizontal component of its velocity is zero.
D. The vertical component of its velocity is 9.8 m/s down.
I believe it is B. Am I correct?
1 Answer
Feb 21, 2018
Yes, B
Explanation:
You always have a vertical (downward ) acelaration of 9,8 m/s^2;
The horizontal aceleration is zero if you neglet friction forces;
the vertical component of velocity is zero at the top of the trajectory while the horizontal component is different from zero otherwise the apple will not arrive to your friend
