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
aliya0001 [1]
3 years ago
9

A block of mass 10kg is moved at a constant speed through a horizontal distance of 4m, by applying a force 50N. How much work ha

s been done when the force is applied in direction?
1- in the same direction of displacement

2- at an angle of 30 with displacement

Physics
1 answer:
algol133 years ago
4 0

Answer:

Explanation:

given that

mass = 10kg

distance = 4m

force = 50N

to calculate the workdone when the force is applied in the same direction of displacement

mathematically,

workdone = force × distance

Workdone = 50 × 4

workdone = 200 joules

2) to calculate the workdone at an angle of 30° with the displacement we apply the formula

workdone = force × distance × cos Ф

workdone = 50 × 4 × cos 30°

workdone = 200 × 0.866

workdone = 173 . 2 joules

You might be interested in
A 59 kg physics student is riding her 220 kg Harley at 12 m/s when she has a head-on collision with a 2.1 kg pigeon flying the o
IgorLugansk [536]

Answer:

Explanation:

Using conservation of momentum

m_1=59+220=279kg

m_2=2.1kg

U_1=12m/s

U_2=-44m/s

m_1U_1+m_2U_2=(m_1+m_2)V\\\\\frac{278\times 12-2.1\times 44}{279+2.1}=V\\\\V=11.58m/s

6 0
3 years ago
A goat enclosure is in the shape of a right triangle. One leg of the enclosure is built against the side of the barn. The other
san4es73 [151]

Answer:

16,18,22

Or

1,3,7

Explanation:

The detailed explanation is contained in the image attached. The lengths are found using Pythagoras theorem and the two lengths reflects the two values of x yielded by the quadratic equation

8 0
3 years ago
A 30kg boxed is pushed with a force of 20N. What is the boxes acceleration. Please show work
kozerog [31]

Answer:

<h3>The answer is 0.67 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{20}{30}  =  \frac{2}{3}  \\  = 0.6666666...

We have the final answer as

<h3>0.67 m/s²</h3>

Hope this helps you

8 0
3 years ago
Any 3 differences between telescope and microscope
Keith_Richards [23]
An instrument used to observe or imagine very small object using an optical mangifier
mirco cell.
Telescope is a magnifer of distance object
4 0
3 years ago
A physical property is a characteristic of a substance is one that _____.
Korolek [52]
A is the correct answer !!!
4 0
2 years ago
Other questions:
  • On a vehicle with a manual transmission, the point at which the engine begins to move the car as the clutch is released is calle
    8·1 answer
  • In _____, marketers determine price based on what consumers are willing to pay and then subtract desired margins to yield target
    5·1 answer
  • Two charges are separated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by
    13·1 answer
  • The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.
    14·1 answer
  • Light reflects off the surface of lake superior. What phase shift does it undergo?
    8·1 answer
  • A remote control car is traveling at a velocity of 0.50 m/s when it hits a wall and comes to a stop in 0.050 seconds. What is th
    13·1 answer
  • a 1.5 kg ball is thrown vertically upward with an initial speed of 15 m/s. if the initial potential energy is taken as zero, fin
    15·1 answer
  • Apply Newton’s second law to calculate the frictional force needed to hold a 15 g pen in your fingers and keep it from falling
    5·1 answer
  • The force of gravity between two objects is greatest when the objects have?
    8·1 answer
  • What local group of galaxies is the Milky Way part of?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!