Answer:
* energy is proportional to masses. in a graph it would look like a line
* kinetic energy varies with the square of the velocity, In a graph it gives rise to a quadratic curve
Explanation:
Kinetic energy is defined by
K = ½ m v²
when analyzing this expression we can see:
* energy is proportional to masses. Therefore, doubling the mass doubles the kinetic energy and if the mass rises 4 times the energy rises 4 times, that is, they are directly proportional, in a graph it would look like a line
* kinetic energy varies with the square of the velocity. Therefore by doubling the speed the energy goes up 4 times. In a graph it gives rise to a quadratic curve
Answer: 5.5 m/s
Explanation:
As we are told the runner accelerates at a constant rate, we can use the following equation:
Where:
is the runner's final velocity
is the runner's initial velocity
is the runner's constant acceleration
is the time it takes the runner to reach the final velocity
Finally:
Answer:B
Explanation:The light waves are caught by the front light sensor on the TV and the remote lets off different variations of light depending what you press.
Answer:
The maximum height of the ball will be "16.53 m".
Explanation:
Given that,
As we know,
The initial as well the final height on the ball will be same after it reaches it's maximum height.
then,
⇒
where,
hence,
The max height of the ball will be:
⇒