R C2 9 What are the (a) size and (b) direction (up or down) of current i in Fig. 27-20, where all resistances are 4.0 22 and all batteries are ideal and have an emf of 10 V? (Hint: This can be answered using only mental calculation.) 18 R3 w Figure 27-19 Problem 8. 1 w } w HH + 16 w w Figure 27-20 Problem 9.

1/0.14nm = 10^10/1.4 a lot

im guessing the west of station b

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y