Answer:
Explanation:
Rachel and Sarah are standing on horizontal ground . Let T₁ be the tension between Rachel and Sarah and Sarah is in between you.
Force = mass x acceleration
Apply this equation on Rachel
T₁ = 23 x 2 = 46 N
Let T₂ be tension between Sarah and me and it is inclined at 60°
Force = mass x acceleration
Apply this equation on Sarah
T₂ cos 60 - T₁ = 23 X 2 = 46
T₂ cos 60 - 46 =46
T₂ cos 60 = 92
T₂ = 92 / .5
= 184 N
Answer:
To avoid slipping while playing badminton or to increase friction between the shoes and the badminton court or to enhance the grip.
Explanation:
As the question is general so I will try answer it generally.
As badminton court is usually slippery and flat with no or very little friction and while playing badminton, players have to move very fast from place to place.
So, in order to effectively move faster to take the difficult shots with accuracy badminton players increase the friction between their shoes and the badminton court by shuffling resin to their shoes. It helps to enhance the grip.
Answer:
W = -2080 J
Explanation:
initial position vector of the object is given as

similarly final position vector is given as

now the displacement of the object is given as

now we will have


now the force on the object is given as

so here in order to find the work done




Explanation:
Given:



Using Newton's universal law of gravitation, we can write


