4. Angel starts to move from point O and travels in a straight line with v=2t -t cm/s and t is the time in seconds after leaving O. The particle comes to rest at P. Calculate a. The value of t at P b. The acceleration at P c. The distance from O to P
4. Angel starts to move from point O and travels in a straight line with v=2t -t cm/s and t is the time in seconds after leaving O. The particle comes to rest at P. Calculate a. The value of t at P b. The acceleration at P c. The distance from O to P
Related questions
Question
Transcribed Image Text:4. Angel starts to move from point O and travels in a straight line with v=2t cm/s and t is
the time in seconds after leaving O. The particle comes to rest at P. Calculate
a. The value of t at P
b. The acceleration at P
c. The distance from O to P
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
w
20°
4. The blocks are separated by a solid strut which is attached to the blocks with frictionless
pins. If the coefficient of friction for all surfaces is 0.20,
a. determine the value of horizontal force P to cause motion to impend to the right.
Assume that the strut is a uniform rod weighing 200 lb.
b. what are the direction and the amount of friction?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
