0.975 is correct, to get the answer you divide the length value by 10.
Answer:
The acceleration of the ball is 200 m/s^2
Working formula:
y = v*t + 0.5*a*t^2
where:
y = vertical distance = -1 m
v = initial velocity = 1.25m/s
a = acceleration = 9.81 m/s^2
t = time
Required: t
Solution:
y = v*t + 0.5*a*t^2
1 = (1.25)*t + 0.5*9.81*t^2
0 = -1 + 1.25t + 4.905t^2
Applying completing the square, we get
t = 0.342 s, - 0.597s
Technically, we don't have time with negative value. Thus, the answer is t = 0.342 seconds
Answer:
Explanation:
According to Newton's third law of motion, forces always act in equal but opposite pairs. Another way of saying this is for every action, there is an equal but opposite reaction. This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted. 1.True 2.falues 3.true 4. not really sure on this one
I’ll start you off
1. Positive, negative, ions
Answer a few yourself and I’ll come back and help some more.
