1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
daser333 [38]
3 years ago
10

A string is attached to a ball that has a mass of 0.11 kg. A student pulls up on the string so that the ball accelerates upward

at 0.5 m/s2. What is the tension in the string? (Take the magnitude of acceleration due to gravity to be 9.8 m/s2.)
(Hint: How do all the forces involved interact with each other?)
Physics
1 answer:
enot [183]3 years ago
7 0

Answer:

T=+1.133N

Explanation:

Tension and weight are forces that have opposite directions

Weight is negative (downward)

W=m*g= 0.11kg*(-9.8m/s^2)

W= -1.078N

Tension is possitive (upward)

The total force will be the sum of both (the difference taking in consideration the direction)

Ft= T+W

Also the total force is the product of the mass due to acceleration:

Ft=m*a

Ft= +0.11kg*0.5m/s^2

Ft=+0.055N (upward)

Tension will be the difference between Ft and W:

T= Ft-W

T=+0.055N-(-1.078N)

T=+1.133N

You might be interested in
Patrick is repairing the roof on his house. He uses a hammer having a mass of 1 kilogram. While working at the apex of the roof,
pav-90 [236]

Answer:

72 joules

Explanation:

The potential energy of that hammer is a function of its displacement against gravity. Considering that it fell with a velocity of 12 m/s, it was its displacement against gravity that gave it this velocity. It will continue to move until its displacement to gravity is zero.

since the body is in motion; it has converted its potential energy (mgh, m is mass, g is acceleration due to gravity, and h is the height) to kinetic energy (energy due to motion, 1/2mv^2; m = mass, v = velocity or speed)

therefore the potential energy is equal to kinetic energy

mgh = 1/2mv^2 = 1/2 *1kg* 12*12 = 72 joules.

5 0
3 years ago
HELP!! ALL MY POINTS WILL BE GIVEN
Marta_Voda [28]

Answer:

-6 m/s^2

Explanation:

30 - 90 = -60

-60 / 10 = -6

If acceleration was constant, it will be -6 m/s^2

5 0
2 years ago
Read 2 more answers
PLEASE HELP
lawyer [7]

I SAID don’t copy from internet but u did

Explanation:

5 0
2 years ago
True or False: The more mass an object has, the faster it will fall.
Elza [17]

Answer:

True

Explanation:

8 0
3 years ago
Read 2 more answers
Suppose a current flows through a copper wire. Which two things occur?
worty [1.4K]
I’m pretty sure the answer is c and d hope this helps and good luck
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is mercury barometer​
    13·1 answer
  • What is a nanotoxin and what areas can they be found in?
    12·1 answer
  • Which of the following accurately describes circuits? A. In a parallel circuit, the same amount of current flows through each pa
    15·2 answers
  • The law of conservation of energy states that
    14·1 answer
  • A needle 5cm long can just rest on the surface of the water without wetting. What us it's weight? Surface tension is 0.007N/m​
    5·1 answer
  • A battery with an emf of 4 V and an internal resistance of 0.7 capital omega is connected to a variable resistance R. Find the c
    15·1 answer
  • When did the object have the highest average
    12·1 answer
  • What type of wave travels through matter only??
    6·2 answers
  • Scientists can help us understand the impact of human activities on the environment. True or false?
    7·1 answer
  • The wave function for a traveling wave on a taut string is (in SI units)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!