2 years ago

An object moves 100m in 5sec, Calculate speed.pls answer my question

Mathematics

2 answers:

valentinak56 [21]2 years ago

6 0

Answer:

100÷5=20

The object moves at the speed of 20m per second

almond37 [142]2 years ago

5 0

Answer:

20m per second

Step-by-step explanation:

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$r = 3.74cm$

Step-by-step explanation:

Given

Hemisphere

$Radius = 7cm$

Cone

$Height = 49m$

Required

Determine the radius of the cone

First, we calculate the volume (V1) of the hemisphere.

$V_1 = \frac{2}{3}\pi r^3$

Substitute 7 for r

$V_1 = \frac{2}{3}\pi * 7^3$

$V_1 = \frac{2}{3}\pi * 343$

$V_1 = \frac{686}{3}\pi$

Volume (V2) of a cone is:

$V_2 = \frac{1}{3}\pi r^2h$

Because the lead is cast into a cone, then they have the same volume.

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$\frac{686}{3}\pi = \frac{1}{3}\pi r^2h$

$686 = r^2h$

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3 years ago

An object moves 100m in 5sec, Calculate speed.pls answer my question​

An object moves 100m in 5sec, Calculate speed.pls answer my question