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
yaroslaw [1]
3 years ago
9

A boy with a mass of 30kg rides a merry-go round with a radius of 1.5 meters and a velocity of 0.38 m/s. What is the centripetal

force on the boy? __N
Physics
1 answer:
gregori [183]3 years ago
7 0

Answer:

The centripetal force on the boy = 2.888 N

Explanation:

Given:

m = 30 kg

r = 1.5 m

v = 0.38 m/s

To Find:

The centripetal force on the boy = ?

Solution:

F = m x v^2 / r

F = 30 kg x (0.38 m/s)^2 / 1.5 m

F = 30 x 0.1444 / 1.5

F = 2.888 N

Therefore,

The centripetal force on the boy = 2.888 N

PLEASE MARK ME AS BRAINLIEST!!!

You might be interested in
Which sentence best explains a possible result of climate change on Earth? A. Cold regions will become less appealing to tourism
Alex17521 [72]

The sentence that best explains a possible result of climate change on Earth is : (B). Extreme heat, flooding, and drought will each increase crop yields.

<h3>Meaning of climate change</h3>

A climate can be defined as the weather pattern that is prolonged or long term in a geographical area

Climate change can now be said to be the change in the weather pattern that has been sustained in a particular geographic area for a long period of time

In conclusion, The sentence that best explains a possible result of climate change on Earth is : (B). Extreme heat, flooding, and drought will each increase crop yields.

Learn more about climate change: brainly.com/question/24793273

#SPJ1

3 0
2 years ago
To a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what
neonofarm [45]
T o a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what is the man's velocity? it is 4m/s east
5 0
3 years ago
Read 2 more answers
A block of mass m1 = 3.5 kg moves with velocity v1 = 6.3 m/s on a frictionless surface. it collides with block of mass m2 = 1.7
maxonik [38]
First, let's find the speed v_i of the two blocks m1 and m2 sticked together after the collision.
We can use the conservation of momentum to solve this part. Initially, block 2 is stationary, so only block 1 has momentum different from zero, and it is:
p_i = m_1 v_1
After the collision, the two blocks stick together and so now they have mass m_1 +m_2 and they are moving with speed v_i:
p_f = (m_1 + m_2)v_i
For conservation of momentum
p_i=p_f
So we can write
m_1 v_1 = (m_1 +m_2)v_i
From which we find
v_i =  \frac{m_1 v_1}{m_1+m_2}= \frac{(3.5 kg)(6.3 m/s)}{3.5 kg+1.7 kg}=4.2 m/s

The two blocks enter the rough path with this velocity, then they are decelerated because of the frictional force \mu (m_1+m_2)g. The work done by the frictional force to stop the two blocks is
\mu (m_1+m_2)g  d
where d is the distance covered by the two blocks before stopping.
The initial kinetic energy of the two blocks together, just before entering the rough path, is
\frac{1}{2} (m_1+m_2)v_i^2
When the two blocks stop, all this kinetic energy is lost, because their velocity becomes zero; for the work-energy theorem, the loss in kinetic energy must be equal to the work done by the frictional force:
\frac{1}{2} (m_1+m_2)v_i^2 =\mu (m_1+m_2)g  d
From which we can find the value of the coefficient of kinetic friction:
\mu =  \frac{v_i^2}{2gd}= \frac{(4.2 m/s)^2}{2(9.81 m/s^2)(1.85 m)}=0.49
3 0
3 years ago
What are non examples of light years?
abruzzese [7]
Hi , here are some examples: An astronomical unit A parsec A meter
5 0
3 years ago
Read 2 more answers
(01.01 LC) Two boxes are 8 cm apart. Which of the following should Janet do to
Trava [24]
Place the boxes 10cm apart, if they are closer that concentrates the mass of the boxes more
4 0
3 years ago
Read 2 more answers
Other questions:
  • I am getting tired quickly when I walk to school in the morning. What exercises can I do to help improve my level of fitness in
    8·2 answers
  • Name three elements that have similar chemical properties to oxygen
    14·1 answer
  • How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?
    5·1 answer
  • Question 5
    9·1 answer
  • Light enters from air into diamond which has refractive index of 2.42 calculate the speed of light in diamond the speed of light
    13·1 answer
  • Water, H2O, is a molecule made of oxygen and hydrogen. The bonds that hold water molecules together are due to shared electrons,
    5·1 answer
  • A physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Teflon frying p
    12·1 answer
  • At the instant its angular displacement is 0.32 rad, the angular acceleration of a physical pendulum is -630 rad/s2. What is its
    7·2 answers
  • Explain why the rate of diffusion of a gas decreases with decrease in temperature​
    9·1 answer
  • I WILL MARK BRAINLST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!