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
RideAnS [48]
3 years ago
7

A 30 kg child rides a 20 kg bicycle. Together, the child and the bicycle have a momentum of 110 kg-m/s. What is the velocity of

the boy and the bicycle?
Physics
1 answer:
love history [14]3 years ago
8 0

Answer:

The velocity of the boy and the bicycle is 2.2 m/s.

Explanation:

We have,

Mass of child is 30 kg and the mass of bicycle is 20 kg. The combined momentum of the child and the bicycle is 110 kg-m/s.

It is required to find the velocity of the boy and the bicycle. The momentum of an object is given in terms of mass and its velocity. So,

p=Mv

M is combined mass of child and bicycle

v=\dfrac{p}{M}\\\\v=\dfrac{110}{30+20}\\\\v=2.2\ m/s

So, the velocity of the boy and the bicycle is 2.2 m/s.

You might be interested in
Look at the rock sitting on the hill in the picture above. Gravity should make the rock slide down the hill. What force is actin
nordsb [41]
Look at the rock sitting on the hill in the picture above. Gravity should make the rock slide down the hill. What force is acting to balance gravity,keeping the rock in place? - D. friction
Centripetal force and momentum have to do with movement. Gravity cannot balance gravity. 

5 0
3 years ago
Read 2 more answers
The diagram shows the movement of air as a result of convection currents. At which point is the air at its highest density?
stellarik [79]

When you bring two objects of different temperature together, energy will always be transferred from the hotter to the cooler object.  The objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal.  We say that heat flows from the hotter to the cooler object.  Heat is energy on the move.  

Units of heat are units of energy.  The SI unit of energy is Joule.  Other often encountered units of energy are 1 Cal = 1 kcal = 4186 J, 1 cal = 4.186 J, 1 Btu = 1054 J.

Without an external agent doing work, heat will always flow from a hotter to a cooler object.  Two objects of different temperature always interact.  There are three different ways for heat to flow from one object to another.  They are conduction, convection, and radiation.

 

6 0
3 years ago
Read 2 more answers
Which of the following statements BEST explains why ball-and-socket joints have the greatest range of motion?
galina1969 [7]

Answer:

its d on edge c:

5 0
2 years ago
( Can someone help? )
Murrr4er [49]

Answer:

Answer would be 0.33

Explanation:

Calculations

8 0
3 years ago
Read 2 more answers
Neurons that deliver sensory information from sensory receptors to the spinal cord are called __________.
morpeh [17]

Answer:

First Order Neurons

Explanation:

First Order Neurons

The main function of First Order Neurons is to deliver sensory information from sensory receptors to the spinal cord.

In Actual there are three orders of neurons, the first order neuron carry signals from periphery to the spinal chord, the second order neuron carry signal from from spinal chord to the thalamus. And the third order neurons carry signals to the primary sensory cortex.

5 0
2 years ago
Read 2 more answers
Other questions:
  • A 2.50 gram rectangular object has measurements of 22.0 mm, 13.5 mm, and 12.5 mm. what is the object's density in units of g/ml?
    10·1 answer
  • About once every 30 minutes, a geyser known as Old Faceful projects water 11.0 m straight up into the air. Use g = 9.80 m/s^2, a
    8·1 answer
  • What are tiny sacs at the end of the bronchioles filled with air called?
    13·1 answer
  • According to the law of conservation of charge in alpha decay the total number of protons on one side of the equation equals the
    11·1 answer
  • What is the source of all waves?
    13·2 answers
  • How much heat is absorbed by a 35g iron skillet when its temperature rises from 14oC to 79oC? Joules
    14·1 answer
  • You are hiking in Yellowstone National Park. A park ranger is speaking to students visiting a hot spring. Temperatures there can
    9·1 answer
  • Describa con sus palabras que fue lo que descubrio galileo en su legendario experimento en la torre inclinada de pisa
    7·1 answer
  • PLEASE HELP!!
    9·1 answer
  • 2 grenades have been dropped, one in the pool, one on land, where do you dive for cover?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!