Answer:
0.0337 J or 33.7 mJ
Explanation:
PEspring = ½ kx = 0.5 A 55.0 N/m A (0.0350 m) = 0.0336875 J = 2 2
Answer:
Explanation:
Newton’s second law states that the acceleration a of an object is proportional to the force F acting on it is inversely proportional to its mass m. The mathematical expression for the second law of motion is given by :
F = m × a
F is the applied force
m is the mass of the object
a is the acceleration due to gravity
We need to find the dimensions of force. The dimension of force m and a are as follows :
So, the dimension of force F is, . Hence, this is the required solution.
Shooking the rope up and down 5 times per seconds means that there are 5 cycles of the wave (or 5 crests) in one second, and so its frequency is
.
The period T is the reciprocal of the wave's frequency, therefore it is
M×g+m×a=m×g×0,66. :m
g+a=g×0,66
a=g×0,66-g=g×(0,66-1)
a=9,81×(-0,34)=-3,3354
The acceleration is negative which means he is moving downward.
The force of Weight is F=m×g and you have to add m×a for the acceleration of the elevator.