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
Llana [10]
3 years ago
11

A horizontal force of 200N is applied to a 55kg cart across a 10m level surface. If the cart accelerates at 2.0m/s^2, then what

is the work done by the force of friction as it slows the motion of the cart?
Physics
2 answers:
vovangra [49]3 years ago
8 0

Answer:

Work done by the force of friction 900 J and coefficient of friction Us=0.166

Explanation:

∑F= m*a

F-F_{fr} = m*a

200 N - F_{fr} = 55 kg * 2 \frac{m}{s^{2} }  \\200 N - 110 N =  F_{fr}\\ F_{fr}= 90 N \\ F_{fr}= m*g*us  \\90N = 55 kg*9.8 \frac{m}{s^{2} } *us  \\us= \frac{90N}{110N} = 0.166 \\W_{fr}= F_{fr}*d = 90N*10m = 900 J

luda_lava [24]3 years ago
3 0
1j=1newton*meter
force=mass*accel
200N=55x
200/55=3.636......
3.636...-2=1.636.....
1.636 is the deceleration resulting from friction hence the force of friction is 1.636*55=90newtons
90newtons*distance of 10 meters= 900 j of work done by friction
You might be interested in
Suppose we have a 600 kilogram great "yellow" shark swimming to the right at a speed of 3 meters traveled each second as it trie
sammy [17]

Answer:

2.64 m/s

Explanation:

Given that a 600 kilogram great "yellow" shark swimming to the right at a speed of 3 meters traveled each second as it tries to get lunch. An unsuspecting 100 kilogram blue fin tuna is minding its own business swimming to the left at a speed of 0.5 meters traveled each second. GULP! After the great "yellow" shark "collides" with the blue fin tuna

Momentum = MV

Momentum of the yellow shark before collision = 600 × 3 = 1800 kgm/s

Momentum of the tun final before collision = 100 × 0.5 = 50 kgm/s

Total momentum before collision = 1800 + 50 = 1850 kgm/s

Let's assume that they move together after collision. Then,

1850 = ( 600 + 100 ) V

1850 = 700V

V = 1850 / 700

V = 2.64285 m/s

Therefore, the momentum of the shark after collision is 2.64 m/ s approximately

6 0
3 years ago
What is the Ultraviolet Catastrophe?​
Sholpan [36]

The ultraviolet catastrophe was the prediction of late 19th century/early 20th century classical physics that an ideal black body (also blackbody) at thermal equilibrium will emit radiation in all frequency ranges, emitting more energy as the frequency increases.

7 0
3 years ago
CAN SOME ONE TALK TO ME PLZ ASAP IM GOING THROUGH A BAD TIME
ss7ja [257]

Hey! How's it going? If you need anything, feel free to send me a friend request and message me.

Don't worry if things get wrong, they will surely get better, if not, I'm here to talk to you. :)

7 0
3 years ago
Give me 1 example of complete inelastic collision​
Allisa [31]

i hope it helped thanks

4 0
3 years ago
a sound pulse emitted underwater reflects off a school of fish and is detected at the same place 0.01 s later. how far away are
andrew-mc [135]
In fresh water sound waves travel at 1497m/s at 25 degrees, I'll assume that's the characteristics of the water.

If it's 0.01s then you need to divide the speed by 100 to get the, 14.97, however it gets there and back in that time so you need to halve it.
<u>7.485m</u>
5 0
3 years ago
Other questions:
  • An 11.0 kg object traveling south with momentum of 50.0 kg-m/s collides and sticks to a 9.50 kg object traveling directly west w
    11·2 answers
  • What is the station's orbital speed? the radius of earth is 6.37×106m, its mass is 5.98×1024kg.
    12·2 answers
  • PLS ANSWER FAST WILL GIVE BRAINLY!!!
    8·1 answer
  • An Electric Field does 25 mJ of work to move a +7.4 μC charge from one point to another. What is the potential difference betwee
    14·1 answer
  • What the balance electrons for calcium​
    10·1 answer
  • Which list correctly names the three types of galaxies?
    6·2 answers
  • The Sun does NOT rotate the way Earth does. Which statement best describes the difference in their rotations?
    12·1 answer
  • Part 4: Place the following in order
    5·1 answer
  • A bullet of mass 10g is fired from a gun. The bullet takes 0.003s to move through its barrel and leaves it with a velocity of 30
    5·1 answer
  • Which of the following consists of photovoltaic cells?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!