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
MissTica
3 years ago
6

Only the component of force perpendicular to the direction motion does work. true or false

Physics
1 answer:
const2013 [10]3 years ago
4 0
No.  Only the component of force parallel
to the direction of motion does work.

You might be interested in
A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches
tiny-mole [99]

Answer:

26.8 seconds

Explanation:

To solve this problem we have to use 2 kinematics equations: *I can't use subscripts for some reason on here so I am going to use these variables:

v = final velocity

z = initial velocity

x = distance

t = time

a = acceleration

{v}^{2}  =  {z}^{2}  + 2ax

v = z + at

First let's find the final velocity the plane will have at the end of the runway using the first equation:

{v}^{2}  =  {0}^{2}  + 2(5)(1800)

v = 60 \sqrt{5}

Now we can plug this into the second equation to find t:

60 \sqrt{5}  = 0 + 5t

t = 12 \sqrt{5}

Then using 3 significant figures we round to 26.8 seconds

3 0
3 years ago
Vector vector a has a magnitude of 29 units and points in the positive y-direction. when vector vector b is added to vector a ,
Nutka1998 [239]
Good morning.

We have:

\mathsf{\overset{\to}{a} = 29\overset{\to}{j}}

Where j is the unitary vector in the direction of the y-axis.

We have that 

\mathsf{\overset{\to}{a}+\overset{\to}{b} = -18\overset{\to}{j}}

We add the vector -a to both sides:

\mathsf{\overset{\to}{b} = -18\overset{\to}{j} -\overset{\to}{a} = -18\overset{\to}{j} -29\overset{\to}{j}}\\ \\ \mathsf{\overset{\to}{b}=-47\overset{\to}{j}}


Therefore, the magnitude of b is 47 units.
5 0
3 years ago
Read 2 more answers
How long does it for a car to cover 100 miles at 60 mi/hr? Use one of the following equations:
Mazyrski [523]
1 hour and 40 minutes
4 0
3 years ago
Read 2 more answers
Zoe finds that the temperature of a substance is 12 degrees Celsius. What does this tell Zoe about the substance?
maks197457 [2]
Given the temperature, we can tell if the substance is cold or not relative to the reference temperature. For example, compared to the substance having a temperature of 15 degrees C, the substance is colder and it is hotter from the substance of temperature lesser than 12 degrees C. 
5 0
3 years ago
Read 2 more answers
Do you think the inner planets should be explored or should the money be spent on other things? Justify your opinion.
frosja888 [35]

Answer:

yes i think that inner planets should be explored because if we ever find new life or are able to live there then i think its worth takeing a risk.

Explanation:

4 0
3 years ago
Other questions:
  • What are glacial grooves?
    7·2 answers
  • What is the main element that stars are made of
    14·2 answers
  • A group of students is investigating whether copper is a better thermal conductor than steel. The students take a copper wire an
    10·2 answers
  • A small ball of mass m is dropped immediately behind a large one of mass M from a height h mach larger then the size of the ball
    11·1 answer
  • You've always wondered about the acceleration of the elevators in the 101 story-tall Empire State Building. One day, while visit
    13·1 answer
  • runnin reggie ran up a mountain from an elevation of 915 m to 4095 m in 62.25 min. If Reggie has a mass of 70 kg, how much power
    14·1 answer
  • What is the minimum force required to increase the energy of a car by 69 J over a distance of 42 m? Assume the force is constant
    12·1 answer
  • plss answer what do yo call the substance from the male body that travel to the female body to make children​
    10·2 answers
  • Which has the greater acceleration, a person going from 0 m/s to 10 m/s in 10 seconds or an ant going from 0 m/s to 0.25 m/s in
    12·1 answer
  • What main factor determines the stages a star will follow after the main sequence?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!