A quantities are in SI units. What is the magnitude of the acceleration of the o

Question

A quantities are in SI units. What is the magnitude of the acceleration of the object at time = 2.00 s? 1.00 m/s^2 0.00 m/s^2 0.522 m/s^2 4.00 m/s^2 2.00 m/s^2 For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero. its velocity is perpendicular to the acceleration. its velocity and acceleration are both zero. the horizontal component of its velocity is zero. the horizontal and vertical components of its velocity are zero. Which one of the following free-body diagrams best represents the free-body diagram, with correct relative force magnitudes, of a person in an elevator that is traveling upward but is gradually slowing down at a rate of 9 m/s^2. F^rightarrow f is the force of the floor on the person and F^rightarrow g the force of gravity on the person.

Explanation / Answer

at highest point of trajectory

vertical component of velocity is zero

horizontal component of velocity remain constant

at highest point acceleration work downwards which is equals to g

option B is correct

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