A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket
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Here's a perfect example of a stable and unstable system.
Answer:
<h3><em>28.01m/s.</em></h3>Explanation:
Given maximum height reached by the ball as H = 40 metres
Since the ball rises straight up when hit by a ball, then the angle of launch will be perpendicular to the ground and that is 90°.
To determine the upward speed of the ball in meters per second after it got struck by the bat, we will use the formula for calculating the maximum height according to projectile motion;
Maximum Height H = where;
u is the speed of the ball
is the angle of launch
g is the acceleration due to gravity = 9.81m/s²
Substituting the given parameters into the formula;
<em>Hence the upward speed of the ball in meters per second after it got struck by the bat is 28.01m/s.</em>