Answer:
Traveled north = 18 blocks
Traveled east = 10 blocks
Traveled south = 16 blocks
So total distance = (18+10+16) blocks = 44 blocks
as north and south are opposite
so traveled displacement from up to down is = (18-16) blocks = 2 blocks
and starting to east distance is 10 blocks
so using pythagoras theorem the displacement
=
blocks
=
blocks
=
blocks
= 10.198 blocks (approx.)
ANS: distance=44 blocks, displacement=10.198 blocks (approx.)
Explanation:
Answer:
a) 42.9 m/s
b) 41.6m
Explanation:
a) ![V_{0x}=V_{0y}=\frac{v}{\sqrt{2} }](https://tex.z-dn.net/?f=V_%7B0x%7D%3DV_%7B0y%7D%3D%5Cfrac%7Bv%7D%7B%5Csqrt%7B2%7D%20%7D)
![y(t)=0.3+\frac{v}{\sqrt{2} }t -4.9t^{2} \\188=\frac{vt}{\sqrt{2}} \\](https://tex.z-dn.net/?f=y%28t%29%3D0.3%2B%5Cfrac%7Bv%7D%7B%5Csqrt%7B2%7D%20%7Dt%20-4.9t%5E%7B2%7D%20%5C%5C188%3D%5Cfrac%7Bvt%7D%7B%5Csqrt%7B2%7D%7D%20%5C%5C)
solving the eq we get
v=42.9 m/s
b) <em>here,</em>
![t=\frac{116\sqrt{2} }{42.9}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B116%5Csqrt%7B2%7D%20%7D%7B42.9%7D)
when put in y(t) it gives y=44.6 m so result is
h=44.6-3= 41.6m
The answer is B. An antitussive will help a cough by deterring the cough reflex.
Among the choices the <span>statements that best explains why the size of the refracting telescope lens is kept small at the cost of reducing its capacity to gather radiations from space is "</span><span>Big lenses do not focus light properly to produce clear images. "</span>
Answer:
a) No
b) No
Explanation:
When a bat is hit in a game of baseball such that it flies out of the field that means it is going with some angle to the horizontal.
a)
Then is such a case the velocity of the ball is never parallel to the acceleration because there acts a net acceleration which is resultant of the acceleration due to the applied force and the acceleration due to gravity but a component of the velocity when the ball descends the height acts parallel to the gravity.
b)
At no point during the motion of the ball its velocity is perpendicular to its acceleration because it has an initial angle of projection form the horizontal.