Answer:
100J
Explanation:
Kinetic energy=1/2mv^2
Kinetic energy=(1/2 x 8)x5^2
Kinetic energy=4x25
Kinetic energy=100
100J
Answer:
both the same
Explanation:
When a ball is thrown vertically upwards, it experiences that same acceleration due to gravity as an object thrown directly downwards.
This means that if we ignore the effects of air resistance, and the two balls have the same initial speed, they are expected both expected to hit the ground at the same speed as a result of the principle of conservation of energy.
Answer:
Impulse = 4Ns
Explanation:
Given the following data;
Force = 2N
Time = 2 seconds
To find the impulse experienced by the object;
Impulse = force * time
Impulse = 2*2
Impulse = 4Ns
Therefore, the impulse experienced by the object is 4 Newton-seconds.
A wave looses its power as it comes to shore because it gets less deeper every second it gets closer to shore
Answer:
Explanation:
The proton is under a linear motion with constant acceleration. So, we use the kinemtic equations to calculate its final speed. We know its acceleration, its initial speed and its traveled distance. Thus, we use the following equation: