To find velocity on a distance vs time graph, find the slope (of line segment C in this case)
Calculate slope by finding rise (change in x) over run (change in x).
10-30/160-80
-20/80
-1/4
Final answer: B
Velocity because It is defined as the change in the position with respect to the time. Velocity is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of velocity is, m/s
Acceleration : It is defined as the rate of change of velocity of an object wit respect to the time. Acceleration is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of acceleration is, m/s to the power of 2
Distance : It is defined as the how far an object has traveled in time. Distance is a scalar quantity that means it is depends on the magnitude of an object only. The S.I unit of distance is, m
Speed : It is defined as the distance traveled by an object in unit time. Speed is also a scalar quantity. The S.I unit of speed is, m/s
Mary traveled 70 miles/hour due north. This is an example of velocity. 70 miles/hour tell us about the magnitude of the object and north tell us about the direction of an object.
Hence, the correct option is, velocity.
Answer:
Ensure each member of the audience can see and read the aid.
Explanation:
Answer:
20 neutrons
Explanation:
This will get you the mass number of the most abundant potassium isotope. You now know that the most abundant isotope of potassium contains 20 neutrons. All isotopes of potassium will have the same number of protons inside their nucleus, i.e. 19 protons.
I hope this helps you.
Answer: 0.85 s
Explanation:
Vs=24.6m/s
Vf=26.8m/s
a=2.6m/s²
t=?
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Use equation for acceleraton to find out time .
a=Vf-Vs/t
ta=Vf-Vs
t=Vf-Vs/a
t=26.8-24.6/2.6
t=2.2m/s/2.6m/s²=0.85s
