Physics

 

Resources:

 

Problems:

Question 1 (3points):

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Calculate the displacement and velocity at time of 0.500 s for a ball thrown straight up with an initial velocity of 15.0 m/s. Take the point of release to be  y0=0

Question 2 (3points):

A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.00 above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to where it lands?

Question 3 (4points):

Suppose a pilot flies 40.0 km in a direction 600 north of east and then flies 30.0km in a direction 150 north of east as shown in Figure. Find her total distance R from the starting point and the direction θθ of the straight-line path to the final position.

find the resultant vector

Question 4 (4points):

A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as A, B, C in Figure, and then correctly calculates the length and orientation of the fourth side D  . What is his result?

A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides.correctly calculates the length and orientation of the fourth side

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