A traveling wave has displacement given by y(x,t)=(2.0cm)×cos(2πx−4πt), where x is measured in cm and t in s. what is the speed
1 answer:
You might be interested in
Answer:
The maximum distance the person will reach before he slip is 1.82m.
Not even close to the middle of the ladder.
Explanation:
Check attachment for solution
Answer:
3 ft/s
Explanation:
given,
distance in west, d₁ = 18 ft
distance in south, d₂ = 24 ft
time taken to travel 42 ft = 10 s
speed of boat in north = x ft/s
Speed of the boat when heading west = (x - 3) ft/s
again using the above formula
now, total time
t = t₁ + t₂
on simplifying
10 x² -72 x + 72 = 0
On solving the above equation we get
x = 6 ft/s
Hence, speed of boat in west direction, 6 -3 = 3 ft/s
speed of boat in south direction = 6 ft/s