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Daniel [21]
3 years ago
9

As a skateboarder moves downhill, some of the energy of the skateboarder is

Physics
2 answers:
Sonja [21]3 years ago
6 0
As the skateboard rolls down the ramp it loses potential energy and gains kinetic energy.
Elodia [21]3 years ago
5 0

Answer:

D) kinetic and some potential.

Explanation:

As the skateboard moves it gains kinetic energy and losses some potential energy, so I would say that it has more kinetic energy than potential energy, but it still has both.

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What’s the difference between the speed and velocity of an object?
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Answer:

C

Explanation:

speed if how far an object goes whereas the velocity is the speed in hour or a minute

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3 years ago
The two uniform, slender rods B1and B2, each of mass 2kg, are pinned together at P, and then B1is suspended from a pin at O. (Th
Bezzdna [24]

Answer:

hello the diagram relating to this question is attached below

a) angular accelerations : B1 = 180 rad/sec,  B2 = 1080 rad/sec

b) Force exerted on B2 at P = 39.2 N

Explanation:

Given data:

Co = 150 N-m ,

<u>a) Determine the angular accelerations of B1 and B2 when couple is applied</u>

at point P ; Co = I* ∝B2'

                150  = ( (2*0.5^2) / 3 ) * ∝B2

∴ ∝B2' = 900 rad/sec

hence angular acceleration of B2 = ∝B2' + ∝B1 = 900 + 180 = 1080 rad/sec

at point 0 ; Co = Inet * ∝B1

                  150 = [ (2*0.5^2) / 3  + (2*0.5^2) / 3  + (2*0.5^2) ] * ∝B1

∴ ∝B1 = 180 rad/sec

hence angular acceleration of B1 =  180 rad/sec

<u>b) Determine the force exerted on B2 at P</u>

T2 = mB1g + T1  -------- ( 1 )

where ; T1 = mB2g  ( at point p )

                 = 2 * 9.81 = 19.6 N

back to equation 1

T2 = (2 * 9.8 ) + 19.6 = 39.2 N

<u />

3 0
3 years ago
If the position of a body is 3 m, 6 m, 9 m, 12 m at instants 2 s, 4 s, 6 s
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Answer:

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Explanation:

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This is one of the four planets Mercury,Venus,Earth,and Mars, whose orbits lie nearest the Sun
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Answer:

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Explanation:

Mercury is the closest planet to the sun followed be Venus. Though Mercury is the closest Venus is actually the hotest planet

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Fnet = fa + ff or fnet = fa - ff
skelet666 [1.2K]

Answer:first of all what is your question and i can give and example which is Use them when you have 2 forces named Fa & FF or Fg & Ff acting in opposite directions on an object and you need to know the resultant of your 2 forces.

Explanation:

i searched it up

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