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Scrat [10]
2 years ago
15

On the way to school, the bus speeds up from 20 m/s to 36 m/s in 4 seconds. What distance

Physics
1 answer:
Tresset [83]2 years ago
4 0
Answer B. 112 m



Step-by-Step Explanation

initial velocity u = 20 m /s
final velocity v = 36 m /s
time taken t = 4 s
acceleration = (v - U) / t
= (36 - 20) / 4
a=4m/s2
from the formula
7-u2=2as , sis distance covered
putting the values
362-202=2×4×s
1296 - 400 = 8 x S
S= 112 m
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Which of the following is not true about the Law of Conservation of Energy?
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Complete Question

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    The charge on the second sphere is  q_2 =  8 \mu C = 8*10^{-6} \  C

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     KE  =  0.3 \  J

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Generally the total energy possessed by when q_2 and  q_1 are separated by 0.4 \  m is mathematically represented

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And  U_f is  the  potential  energy which is mathematically represented as

        U_f  =  \frac{k *  q_1 *  q_2  }{d }

substituting values

       U_f  =  \frac{9*10^9 *  2*10^{-6} * 8*10^{-6}  }{0.4 }

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