Answer:
Explanation:
This is an exercise where you need to use the concepts of <em>free fall objects</em>
Our <u>knowable variables</u> are initial high, initial velocity and the acceleration due to gravity:
At the end of the motion, the <u><em>rock hits the ground</em></u> making the final high y=0m
If we <em>evaluate the equation</em>:
This is a classic form of <u><em>Quadratic Formula</em></u>, we can solve it using:
Since the <u><em>time can not be negative</em></u>, the <em>reasonable answer</em> is
<span>An automotive paint sequence on a suspect's car is as follows: clear coat, silverstone ii metallic, primer. a paint smear is found on a metal post near a hit-and-run assault. The most likely to find on the metal post is the </span>Color-layer sequence of the automobile. Paint is usually used as a physical evidence in a hit-and-run incident.
Answer:
3.33m/s
Explanation:
Speed is the change in distance of a body with respect to time.
Speed = Distance/Time
Given
Distance = 1100m
Time = 330s
Speed = 1100/330
Speed = 3.33m/s
Hence her average speed in m/s is 3.33m/s
Answer:
The poem, Going Down the Hill on a Bicycle, written by Henry Charles Beeching describes the thrilling ride of a boy going downhill. ... The poet mentions how he lifts his feet from the pedals and keeps his hands still so that he would not lose his balance and fall off the bicycle, while it is dashing down the hill.
Question 17:
At point A, the snowboarder is on the point of moving and the potential energy would be at its maximum (the particle has to work against the force of gravity). The kinetic energy is zero since the snowboarder is not yet moving (has no velocity).
Question 18:
At point C, the kinetic energy will be zero and the potential energy will be minimum. As the snowboarder moves from point C to B, there will be a transfer between the kinetic energy to the potential energy. At point B, the potential energy will be back to maximum.
