Answer:
12.25 meters
Explanation:
s=1/2(v+u)t
s= displacement
v= final velocity
u= initial velocity
t= time
7m/s+0m/s divide by 2= 3.5 m/s velocity Times 3.5 seconds= 12.25 meters
Answer:
on the planet
on earth
Explanation:
Given:
- initial velocity of the tool before pushing,

- force applied on the tool,

- displacement of the tool,

- time taken for the displacement,

- height of releasing the tool,

- time taken by the tool to fall on the ground,

<u>Now using the equation of motion:</u>

where:
a = acceleration of the object


Now the mass of the tool:



<u>Using the equation of motion when the tool is dropped:</u>

here:
g = acceleration due to gravity on the planet


Weight of the tool in the planet:



Weight of the tool on the earth:



Alkali
The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
Hope this is the brainliest answer.