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emmasim [6.3K]
3 years ago
14

in the absences of friction, gravity, and all other external forces, what kind of speed will an object display if it’s travel fr

om the bottom to the top of an inclined plane
Physics
1 answer:
krek1111 [17]3 years ago
3 0

Answer:

Constant speed.

Explanation:

In the absence of friction a body will not accelerate and hence the speed remains constant.

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A 100-N force causes an object to<br> accelerate at 2 m/s/s. What is the<br> mass of the object?
Kitty [74]

Answer:

50\; \rm kg.

Explanation:

By Newton's Second Law, the acceleration a of an object is proportional to the net force \sum F on it. In particular, if the mass of the object is m, then

\sum F = m \cdot a.

Rewrite this equation to obtain:

\displaystyle m = \frac{\sum F}{a}.

In this case, the assumption is that the 100\; \rm N force is the only force that is acting on the object. Hence, the net force \sum F on the object would also be

Make sure that all values are in their standard units. Forces should be in Newtons (same as \rm kg \cdot m \cdot s^{-2}, and the acceleration of the object should be in meters-per-second-squared (\rm m \cdot s^{-2}). Apply the equation \displaystyle m = \frac{\sum F}{a} to find the mass of the object.

\displaystyle m = \frac{100\; \rm N}{2\; \rm m \cdot s^{-2}} = 50\; \rm kg.

4 0
3 years ago
Which would exert the most gravity on a spacecraft that is passing close to Jupiter?
klio [65]
D. Jupiter has the highest amount of gravity in our solar system
7 0
2 years ago
A boy on board a cruise ship drops a 30. 0 gm marble into the ocean. If the resistive force proportionality constant is 0. 500 k
svlad2 [7]

The terminal speed of the marble is 0.588 m/s.

<h3>Calculation:</h3>

We know that,

F = mg                                                   ......(1)

where,

F = force

m = mass

g = acceleration due to gravity

Also,

v = F/k                                                       ......(2)

where,

v = terminal speed

k = proportionality constant

Substituting the value of F from equation (1) in equation (2)

v = mg/k                                                         .......(3)

Given,

m = 30 g = 0.030 kg

k = 0.500 kg/s

g = 9.8 m/s²

To find,

v =?

Put the values in equation (3)

v = mg/k              

v = 0.03(9.8)/ 0.500

  = 0.294/0.500

  = 0.588 m/s

​

Hence, the terminal speed of the marble is 0.588 m/s.

Learn more about calculation of force here:

brainly.com/question/15562875

#SPJ4

.

5 0
2 years ago
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Why is the deep ocean cold and dark?
Tomtit [17]
Because no sunlight can penetrate it
8 0
3 years ago
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in an experiment performed in a space station a force of 6 n causes an object to have an acceleration equal to 4 m / S2 II what
spayn [35]

F = m A

m = F / A

m = 6N / 4m/s^2

m = 1.5 kg

8 0
3 years ago
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