Answer:
87
Step-by-step explanation:
The two students didn’t take each bonus question because several people already had done it
Step-by-step explanation:
We have, Sorin hits a cricket ball straight up into the air. After 1.5 s, the ball is falling straight down with a speed of 6.5 m/s.
We want to find the initial vertical velocity of the ball.
The relation between initial speed, final speed, acceleration and time is given by using first equation of kinematics. Let v₀ is the initial speed. So,
Here, v = -6.5 m/s, t = 1.5 s and a = -g
So, the initial velocity of the ball is 8.2 m/s and the formula used is (1).
Answer:
Step-by-step explanation:
Make sure the denominators are the same.
Subtract the numerators. Put the answer over the same denominator.
Simplify the fraction (if needed).
Answer:
I don't know what x is, but look below.
Step-by-step explanation:
If x=angle 3, then x=180-102=72
If x=angle 2, then x=102 (Vertical Angles Theorem
Hope I helped!