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Rasek [7]
2 years ago
13

A motorcycle together with its Rider with 150 kg how much work is needed to set its movement at 15 metre per second.​

Physics
1 answer:
AVprozaik [17]2 years ago
5 0

Answer:

W = 16875 J

Explanation:

We have,

Mass of a motorcycle together with its rider is 150 kg

It is required to find the work is needed to set its movement at 15 metre per second. The work done is given by :

W=\dfrac{1}{2}mv^2

Plugging all the values in above formula such that :

W=\dfrac{1}{2}\times 150\times (15)^2\\\\W=16875\ J

So, the work of 16875 J is needed.

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Determine the magnitude, fda, acting along member da, due to the applied force f=10.0 iâ20.0 j+27.2 k n.
VashaNatasha [74]

Force vector is given as

F = 10\hat i + 20\hat j + 27.2\hat k

now we need to find the magnitude of this force

as we know that

F_x = 10

F_y = 20

F_z = 27.2

so here we will find the net force

F_{net} = \sqrt{F_x^2 + F_y^2 + F_z^2}

F_{net} = \sqrt{10^2 + 20^2 + 27.2^2}

F_{net} = 35.2 N

so it is having magnitude as 35.2 N

8 0
2 years ago
Weight is measured in: grams, kilograms, metric tons, or pounds
sergejj [24]
'Gram', 'kilogram', and 'metric ton' are units of mass, not weight.

'Pound' can be either a unit of mass or of force.  Most people
use it most of the time to mean weight.
8 0
2 years ago
Assume your mass is 84 kg. The acceleration due to gravity is 9.8 m/s 2 . How much work against gravity do you do when you climb
KATRIN_1 [288]
M, mass=84 kg
height, h=3.9m
gravity, g= 9.8m/s2
W = F . d
F=force
d=Displacement
W=work done by force
Now by putting the values
F= m g (Acting downward )
d= h (Upward)
W= m g h ( work done against the force)
W= 84•9.8•3.9J
W= 3210.48
Therefore the answer will be 3210.48J.
7 0
2 years ago
In what part of the scientific method do you record data?
densk [106]
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6 0
3 years ago
Give two ways of reversing the direction of the forces on the coil in the electric motor?​
nikklg [1K]

Answer:

Interchanging the poles of the magnet

Reversing the direction of the applied current

Explanation:

  1. The working of the electric motor is associated with Fleming's left-hand rule.
  2. It states that if a current-carrying conductor is placed inside a magnetic field, it experiences a force in the direction perpendicular to the direction of the electric current and magnetic field.
  3. These three physical quantities are placed in a mutually perpendicular direction.
  4. So, in order to reverse the direction of force, you have to either change the direction of the current or magnetic field.
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3 years ago
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