The elevator has constant acceleration upward
Given that a student that weighs 436 N is standing on a scale in an elevator and notices that the scale reads 498 N.
The formula of force can be derived from the Newton's second law of motion, which states that the force exerted by any object equals mass times the acceleration of that object i.e., F = ma
Net force = mg + ma
498 = 436 + ma
62 = 436 a/ 9.8
a = (62 x 9.8) / 436
a = 1.39 m/s²
Hence, it is clear that the elevator has constant acceleration upward.
Learn more about Elevator force here
brainly.com/question/4289588
#SPJ4
The period of a mass-spring system is:
T = 2π
T = period, m = mass, k = spring constant
Given values:
T = 8π s
k = 2 N/m
Plug in and solve for m:
8π = 2π
= 4
m/2 = 16
m = 32 kg
Choice A
One possible consequence is that the warmer temperature cause the polar ice to melt even faster
Answer:
W = 506.75 N
Explanation:
tension = 2300 N
Rider is towed at a constant speed means there no net force acting on the rider.
hence taking all the horizontal force and vertical force in consideration.
net horizontal force:
F cos 30° - T cos 19° = 0
F cos 30° = 2300 × cos 19°
F = 2511.12 N
net vertical force:
F sin 30° - T sin 19°- W = 0
W = F sin 30° - T sin 19°
W = 2511.12 sin 30° - 2300 sin 19°
W = 506.75 N