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Gnoma [55]
3 years ago
10

Which is an inertial reference frame (or at least a very good approximation of one)? Which is an inertial reference frame (or at

least a very good approximation of one)? A jet plane flying straight and level at constant speed. A jet plane turning takeoff, a jet plane flying straight and level at constant speed, AND a jet plane turning at constant speed. A jet plane during takeoff. A jet plane flying straight and level at constant speed AND a jet plane turning at constant speed. A jet plane turning at constant speed.
Physics
1 answer:
ioda3 years ago
4 0

Answer:

A jet plane flying straight and at level at constant speed

Explanation:

     The<em> inertial frame </em>of reference is a frame of reference in which all <em>Newton law  is valid</em> ie Newton second law of motion and therefore newton first law of motion holds good. <em>The frame of reference does not accelerate.</em>

All the object that is in the frame of reference are at rest or moving with constant rectilinear motion with constant velocity unless acted upon by any force.

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A point moves on the x-axis in such a way that its velocity at time t (t &gt; 0) is given by v=ln t/t . At what value of t does
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Explanation:

Given

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5 0
3 years ago
A balloon filled with helium gas has an average density of Q,-0.41 kg/m'. The density of the air is Qa-1.23 kg/m3. The volume of
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Answer:

a) (Qa*g*Vb)-(Qh*Vb*g)=(Qh*Vb*a)\\where \\g=gravity [m/s^2]\\a=acceleration [m/s^2]

b) a = 19.61[m/s^2]

Explanation:

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massball=densityheli*volumeheli\\\\massball=0.41 [kg/m^3]*0.048[m^3]\\massball=0.01968[kg]\\\\

The buoyancy force acting on the balloon is:

Fb=densityair*gravity*volumeball\\Fb=1.23[kg/m^3]*9.81[m/s^2]*0.048[m^3]\\Fb=0.579[N]

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In the attached image we can see the free body diagram and the equation deducted by Newton's second law

6 0
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