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fenix001 [56]
3 years ago
14

A water skier is pulled by a boat traveling with a constant velocity. Which one of the following statements is false concerning

this situation? A. The net vertical force on the skier is zero newtons. B. The net acceleration of the skier is zero m/s2. C. There is a net horizontal force on the skier in the direction the ​boat’s velocity. D. The water skier is in equilibrium. ​ E. The net force on the skier is zero newtons.
Physics
1 answer:
ycow [4]3 years ago
6 0

Answer:

C. There is a net horizontal force on the skier in the direction the ​boat’s velocity.

Explanation:

This is because, according to Newton's First law of motion, when an object which in this case is the skier tends to be in equilibrium because it travels at a constant velocity, there is no net acceleration of the skier, and this causes the net force on the skier to be equal to zero.

Therefore in this question, option C which states that "There is a net horizontal force on the skier in the direction the ​boat’s velocity" is a false statement.

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MA_775_DIABLO [31]

Answer:

16 kg

Explanation:

M - container

m - oil mass

by definition of density ,

relative density is the ratio of the density of a substance to the density of water.

relative density = density/ density of water

density of oil = 1.2*1000 kgm⁻³  = 1200 kgm⁻³

1 Litre =10⁻³ m³

oil volume = 80 *10⁻³ m³

mass of oil = density * volume

                   = 1200*80*10⁻³

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Mass of container + mass of  oil =112

mass of container = 112 - 96

                              = 16 kg

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3 years ago
A car is moving 18 m/s to the east. if it takes the car 5 seconds to reach a velocity of 19 m/s to the east, what is its acceler
almond37 [142]
<span>C. 0.2 m/s2 east

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3 years ago
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anyanavicka [17]

Explanation:

potential energy =360800J

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zalisa [80]

Answer:

Aluminium

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The amount of buoyant force depends on the volume of body immersed, density of liquid and the value of acceleration due to gravity.

Here, the density of liquid is same in both the cases and g be the same. So, here the amount of buoyant force depends on the volume of body immersed.

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