At what point is acceleration the greatest?

At what point is acceleration the greatest?

Neglecting air resistance for the moment, the remaining force is that of gravity which is always g and directed downward. So the acceleration at the highest point is the same as at launch time, i.e. -9.8 meters/sec2 in the vertical direction.

What is the acceleration just before it hits the ground?

So the acceleration of the projectile is equal to the acceleration due to gravity, 9.81 meters/second/second, from just after its thrown, through its highest point, and until just before it hits the ground.

Is the acceleration 0 at the highest point?

At a projectile’s highest point, its velocity is zero. At a projectile’s highest point, its acceleration is zero. The rate of change of the \begin{align*}x\end{align*} position is changing with time along the projectile path.

What is the velocity of an object that has been in free fall for 2.5 s?

Since the ball rises for 2.5 s, the time to fall is 2.5 s. The acceleration is 9.8 m/s2 everywhere, even when the velocity is zero at the top of the path. Although the velocity is zero at the top, it is changing at the rate of 9.8 m/s2 downward.

How far does the ball drop in the next 8 seconds?

The distance travelled in the next 8 seconds is then s(4+8)-s(4)=-5*144-(-80)=-720+80=-640 so it drops an additional 640 meters.

How far will an object fall in 2 seconds?

The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 m. After two seconds it will have fallen 1/2 × 9.8 × 22 = 19.6 m; and so on.

Which statement is true if an object undergoing free fall reaches its maximum height?

Its velocity and acceleration are both zero. Its velocity along the y axis is zero. Which statement is true if an object undergoing free fall reaches its maximum height? Its acceleration is zero.

What is the velocity of a dropped object?

Whether explicitly stated or not, the value of the acceleration in the kinematic equations is -9.8 m/s/s for any freely falling object. If an object is merely dropped (as opposed to being thrown) from an elevated height, then the initial velocity of the object is 0 m/s.