Question

Please Solve this question please​

Answer 1

Answer:

ex:5

Explanation:

example 5.2.221

plz see

which is it .

than I will gave answers

Answer 2

Answer:

$3.67$

Explanation:

$vs = \frac{v1t1 + v2t2 + v3t3}{t1 + t2 + t3} \\ = \frac{2.24 \times \frac{1}{60} + 3.6 \times \frac{1}{60} + 5.18 \times \frac{1}{60} }{ \frac{1}{60} + \frac{1}{60} + \frac{1}{60} } \\ = \frac{ \frac{1}{60} (2.24 + 3.6 + 5.18)}{ \frac{3}{60} } \\ = \frac{2.24 + 3.6 + 5.18}{3} \\ = \frac{11.02}{3} = 3.67$