Question

@saifoo.khan can you help me out with some trig application question. like ferris wheel questions?

Answer 1

Mind posting the questions? :)

Answer 2

The pedals of a bicycle are mounted on a bracket whose centre is 29 cm above the ground. Each pedal is 17 cm from the centre of the bracket. Assuming that the bicycle is pedalled at 10 cycles per minute and that the pedal starts at time t = 0 s at the topmost position.

The equation to represent this function can be written in the form y = a cos[b(t - c)] + d, where y is the height of the pedal from the ground in cm and t is the time in seconds.

Answer 3

what is a,b,c,d

Answer 4

I will brb in a 10 mins. sorry.

Answer 5

What is the height, to the nearest cm, of the pedal above the ground at time t = 7 seconds?cm.

c) At what time, to the nearest second, does the pedal reach its lowest position for the third time?seconds.

Answer 6

i would say:
a is the length of the pedal
b is angular speed
c is inicial time
d is the height of the pedal in the lowest position

Answer 7

i mean the number values.

Answer 8

a is the length of the pedal =17cm
b is angular speed Pi/3 rad/s
c is inicial time = 0s
d is the height of the pedal in the lowest position: 29-17=?

Answer 9

wouldnt d be 29?

Answer 10

how did u figure out b?

Answer 11

10 cycles per min is 10 turns per min. 10 turns is 10*2Pi rad per min. So 20Pi/60 per sec.

Answer 12

about d=29 or no. I think what they whant you is to make a equation of the point of the end of the pedal

Answer 13

What is the height, to the nearest cm, of the pedal above the ground at time t = 7 seconds?cm.

c) At what time, to the nearest second, does the pedal reach its lowest position for the third time?seconds.

Answer 14

can u help?

Answer 15

@directrix can u help me with the last 2 questions