Answer:
27
Explanation:
X axis says any of its values should be multiplied by 9sec. So you would multiply 3 and 9 which gets you 27. Pretty Easy.
Answer:
d = 0.294 m
1) g = k*d/m
To find k: k = 4π²*m/T²
T = 16.3/11 = 1.4818 sec
So
k = 4.495 N/m
Using (1),
g = 4.495*0.294/0.25 = 5.286 m/s²
Explanation:
For the first one: A falling object has higher gravitational potential energy and as it falls this decreases but kinetic energy increases. As the object hits the floor, energy is transferred to heat and sound.
42*9.8*12= 4939.2
Kinetic energy = 4939.2 OR 4939
To find the final speed use the kinetic energy formula;
Ek = 1/2 MV2
4939=1/2*42*v2
V2= 4939 divided by (1/2 * 42)
V2= 4939 / 21
V2= 235.1904761904762
Find square root
V= 15.3359211067
= 15.
Reach the ground at 15m s -¹
Note:
Formula To calculate kinetic energy:
Ek = 1/2 MV2
Ek= kinetic energy of an object
M= mass of object
V= velocity/speed of object
Answer:
Simple harmonic motion is the movement of a body or an object to and from an equilibrium position. In a simple harmonic motion, the maximum displacement (also called the amplitude) on one side of the equilibrium position is equal to the maximum displacement.
The force acting on an object must satisfy Hooke's law for the object to undergo simple harmonic motion. The law states that the force must be directed always towards the equilibrium position and also directly proportional to the distance from this position.