Answer:
Explanation:
Check attachment for solutions
BRAINLIEST PLEASE: You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes yo
1 answer:
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Answer:
The time taken is
Explanation:
From the question we are told that
The length of the speed ramp is
The speed of the speed ramp is
The time taken to cover the distance is
The walking speed( when not on the speed ramp) required to cover the 104m is mathematically represented as
Substituting values
The speed required to cover the 104m distance when on a speed speed ramp is mathematically represented as
substituting values
Now the time taken to travel the 104m distance when walking on the speed ramp is mathematically evaluated as
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