Spring Scale Tension Force Problem

Click For Summary
To determine the acceleration due to gravity at the location of the spring scale, the scale reading of 77.95 N must be used in conjunction with the mass of the television, which is 8.10 kg. The equation F_net = T - Fg indicates that since the television is at rest, the net force is zero, leading to T = Fg. The gravitational force can be calculated using Fg = mg, where m is the mass and g is the acceleration due to gravity. By rearranging the equation to solve for g, the correct value can be determined based on the scale reading. Thus, the acceleration due to gravity at that location is derived from the relationship between the scale reading and the mass of the television.
whoopie88
Messages
52
Reaction score
0

Homework Statement


You place a 8.10-kg television on a spring scale. If the scale reads 77.95 N, what is the acceleration due to gravity at that location?

Homework Equations


f=ma
fg=mg
fnet=mAnet
Ff=μῦF

The Attempt at a Solution


Fnet = T - Fg
mAnet = T - Fg
8.1(Anet) = T - 8.1(9.81)

Now I don't know what to do from here because I have 2 variables.. Help?
 
Physics news on Phys.org
The scale reading is taken with the TV at rest, so that means there is no acceleration. So how much is F_net?
The scale reading, T, is given.
You are trying to solve for 'g', which is not 9.81 in this problem.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
View full post »

Similar threads

Uniform Circular Motion: Tension Force at Top of Circle
  • · Replies 4 ·
Replies
4
Views
1K
Calculating tensions in ropes suspending an onject
  • · Replies 2 ·
Replies
2
Views
2K
Solving for Tension in Net Force Equation: Need Help!
  • · Replies 12 ·
Replies
12
Views
2K
Forces pulley and bricks Problem
  • · Replies 10 ·
Replies
10
Views
2K
Tension of a pendulum and force components
  • · Replies 8 ·
Replies
8
Views
14K
Tension in Ropes: Solving Forces on Trunk
  • · Replies 7 ·
Replies
7
Views
5K
How can I calculate the tension force?
  • · Replies 5 ·
Replies
5
Views
1K
How do you find tension and friction on an inclined plane
  • · Replies 31 ·
2
Replies
31
Views
18K
What Went Wrong with Calculating Spring Force in This Physics Problem?
  • · Replies 23 ·
Replies
23
Views
5K
Two masses connected by a weighted rope pulled vertically
  • · Replies 5 ·
Replies
5
Views
5K