A football is punted from the ground with an initial velocity of 25.2 m/s at an angle of 50° above the horizontal. Draw a picture and label all components of the situation.
What is the horizontal component of the football's initial velocity?
a. 45.2 m/s
b. 19.3 m/s
c. 16.1 m/s
d. 21.3 m/s
What is the vertical component of the football's initial velocity?
a. 19.3 m/s
b. 25.2 m/s
c. 21.4 m/s
d. 17.6 m/s
How long does the football stay in the air?
a. 1.7 s
b. 4.0 s
c. 5.6 s
d. 2.0 s
How high off the ground does the football go?
a. 14.3 m
b. 16.2 m
c. 19.0 m
d. 26.0 m
What is the horizontal length traveled by the football?
a. 32.2 m
b. 57.7 m
c. 64.4 m
d. 48.6 m
Answers: 2
Physics, 22.06.2019 07:00, Angelanova69134
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
A football is punted from the ground with an initial velocity of 25.2 m/s at an angle of 50° above t...
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