5. A body projected upward from the level ground at an angle of 50* with the horizontal has an initial speed of 4 m/s. (. a How long will it take to hit the ground? b. How far from the starting point will it strike? C. At what angle with the horizontal will it strike?
5. A body projected upward from the level ground at an angle of 50* with the horizontal has an initial speed of 4 m/s. (. a How long will it take to hit the ground? b. How far from the starting point will it strike? C. At what angle with the horizontal will it strike?
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Transcribed Image Text:5. A body projected upward from the level ground at an angle of 50* with the horizontal has
an initial speed of 4 m/s. (.
a How long will it take to hit the ground?
b. How far from the starting point will it strike?
c. At what angle with the horizontal will it strike?
DYNAMICS
1. What weight W is necessary to start the system of blocks shown in Figure moving to the
right? The coefficient of friction is 0.10 and the pulleys are assumed to be frictionless.
What are the amount and direction of the frictions (Justify your answer
40 kN
60 kN
20
w/
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