Answer:
See the explanation below.
Explanation:
<u>meters</u> per <u>second</u> per <u>second</u> = (m/s/s) = (m/s^2)
This means that the body increases or decreases its speed 1 (m/s), for every second that passes. An easy example to understand is the acceleration of gravity g = 10 [m/s^2]. This means that if a body is thrown from a 100 (m) high tower, for every second it passes the speed will increase by 10 [m/s].
Answer:
The gradient here represents Angela's Velocity.
Explanation:
A distance-time graph has distance on its y-axis and time on its x-axis. Therefore, the gradient of the distance-time graph is given by the following formula:
Since the rate of change of distance is called the velocity.
<u>Therefore, the gradient here represents Angela's Velocity.</u>
Besides suffocating and inflating like a balloon in the Moon's lack of Oxygen, getting cooked during the Moon's daytime, getting frozen solid during the Moon's night-time, and having no access to the internet or any radio or TV stations, you would weigh only about 16% of what you weigh on Earth because of the Moon's lesser gravity.
So like if you weigh 135 pounds on Earth AND you remembered to bring the bathroom scale with you when you left for the Moon, the scale would show that you weigh only a little over 22 pounds there.
When an object is above the Earth's surface it has gravitational potential energy (GPE). The amount of GPE an object has depends on its mass and its height above the Earth's surface.
The weight of an object is the size of the force of gravity pulling the object down. When an object falls it transfers GPE to KE (kinetic energy).
Answer:
Average power output of athlete = 11025 Watts
Explanation:
Work done is defined as the product of force applied and the displacement perpendicular to the force.
Work = 
Power is defined as work done per unit time.
Power = 
Here the person lifts 900 kg.
Height = 2.5 m
Time interval = 2 seconds
Force = 
= 
= 8820 N
Work done =
= 
= 22050 J
Power = 
= 11025 Watt
