Answer:
Explanation:
Given that:
Mass of ball = 0.1-kilogram
From the North End:
Acceleration of racket = 65 km/hour
Converting to m/seconds
= 65×1000/3600
65000/3600
= 18.055m/s
Ball acceleration= 10 meters per second squared
From the South End:
Acceleration of racket = 75 km/hour
Converting to m/seconds
75×1000/3600
= 75000/3600
= 20.833m/s
Now,
18.055m/s = 10m/s^2
20.833m/s = x
18.055m/s × x = 20.833m/s × 10m/s^2
18.055m/s × x = 208.33
x = 208.33/18.055m/s
X = 11.538m/s^2
Hence, the ball accelerated at the rate of 11.538m/s^2 in the South End.
F = ma
Where a = 11.538m/s^2
m = 0.1kg
F = 0.1×11.538m/s^2
F = 1.15N
Answer: A : 1 N
Explanation The player on the south end of the court hit the tennis ball with her racket at 75 kilometers per hour. Notice that it say per hour well all you need to do is to convert in into minutes then seconds. 1 hour has 60 minutes in it so if you divide 75 by 60 than you will get 1.25 and then you can round it up so that will give you 1 newtons(N). this is what i did to get the answer im not sure if this is how your supposed to do it but i got it right so i have to tell you how i did it.
