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s344n2d4d5 [400]
4 years ago
6

In a TV set, an electron beam moves with horizontal velocity of 4.8 x 10^7 m/s across the cathode ray tube and strikes the scree

n, 50cm away. How far does the electron beam fall while traversing this distance?
Physics
1 answer:
devlian [24]4 years ago
7 0

Answer:

5.32\times 10^{-16} m

Explanation:

Speed=\frac {distance}{time} hence making time the subject then

Time=\frac {Distance}{Speed}

Substituting 50 cm which is equivalent to 0.5 m for distance and velocity as given as 4.8*10^{7}we obtain

Time=\frac {0.5}{4.8*10^{7}}=1.04167\times 10^{-8} s

From kinematic equation

s=ut+0.5gt^{2}and taking g as 9.81 then

s=(0*1.04167\times 10^{-8} s)+(0.5*9.81*(1.04167\times 10^{-8} s)^{2})=5.32227\times 10^{-16} m

s\approx 5.32\times 10^{-16} m

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