The velocity v(t) of a particle is plotted as a function of time. The scale on the horizontal
axis is 4 s per grid square and on the vertical
axis 3 m/s per grid square. Initially, the
particle is at co= 38 m.
6
5
4
velocity (x 3 m/s)
3+
v(t)
2+
1
0
+ + +
0 1 2 3 4 5 6 7 8 9
time (x 4s)
What is the position of the particle at time
t = 16 s? (Pay careful attention to units on
the graph!)
Answer in units of m.

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray