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MissTica
3 years ago
7

In a football game, one team kicks off to the other. At the moment the receiver catches the ball, he is 40 yards from the neares

t tackler. The receiver runs left to right at a speed of 10 yards per second (10 y/s). The tackler runs right to left at a speed of 6 yards per second.
How long does it take before they collide? _____

How far does the receiver go? _____________________
Physics
2 answers:
Talja [164]3 years ago
8 0
The answer is hopefully if i'm correct is 5 or 6 seconds 
Nikitich [7]3 years ago
6 0

Answer:

Part a)

\delta t = 2.5 s

Part b)

d = 25 yards

Explanation:

Speed of the receiver is 10 yards per second towards right

Speed of the tackler is 6 yards per second towards left

So here we have net relative speed of the two towards each other is given as

v_{12} = v_1 - v_2

v_{12} = 10 - (-6) = 16 yards/s

now we know that the distance between receiver and tackler initially is 40 Yards

Part a)

so the time taken by two to collide is given as

\delta t = \frac{\Delta x}{v}

\delta t = \frac{40}{16}

\delta t = 2.5 s

Part b)

Distance moved by the receiver in t = 2.5 s

d = vt

d = 10 (2.5)

d = 25 yards

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