Answer:
<u>C: Energy </u>
Explanation:
Waves can transfer energy over large distances.
I think the answer is C. Remaining constant
Ball is thrown at an angle of 20 degree with velocity 18 m/s
so first we will find the two components of the velocity


similarly for other component


now the ball will cover horizontal distance of 30 m till it reach to other player
so here we can use the formula of time




so it will take 1.77 s to reach the other player
Answer:
The acceleration is 10 m/s²
Explanation:
The question seeks to show the relationship between force, mass and acceleration. Hence, the formula to be used here is that of force which is shown below
F = ma
where F is the force (800 N)
m is the mass (80 kg)
a is the acceleration (unknown)
From the formula above (Force = mass multiplied by acceleration)
800 N = 80 kg × a
a = 800 ÷ 80
a = 10 m/s²