The meter is the S.I.unit for length.
Answer:
Number of significant figures=3
Explanation:
15.0/124=0.121
In scientific notation 1.21× 10-1
or,
1.21e-1
Answer:
19.2 m/s
Explanation:
From the question,
Velocity = displacement/time = d/t
V = d/t.................................. Equation 1
Average velocity = Total displacement/ total time
Total dispalcement = √(30²+60²) = √4500 = 67.08 m
Total time = 1.5+2 = 3.5 s.
Substitute these value into equation 1
V = 67.08/3.5
V = 19.2 m/s.
Hence the average velocity is 19.2 m/s
<span>Answer:
Force is a vector. If you have one force pointed northeast and another northwest the east/west component would cancel each other out. The arithmatic sum of their magnitudes is the whole force.
If you have equal forces, one going north and one south, the net force would be 0 no matter how large the arithmetic sum might be.</span>