One afternoon, a postman drives 2.50 km due west of the post-office to deliver an express package in a house. He then walks due north to a coffee shop to meet a group of pensioners. If the magnitude of the postman's total displacement vector at the coffee shop with respect to the post-office is 2.55 km,
a) How far north the postman walked?
b) What is the direction and angle of his total displacement vector while at the coffee store with respect to the post-office?
c) If the post-man took the shortest path to return to the post-office, what is the total distance the post-man traveled in the whole journey on that afternoon?
Answers: 2
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 22.06.2019 22:30
You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ? a. 100c b. 60c c. 25 c d.50c
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One afternoon, a postman drives 2.50 km due west of the post-office to deliver an express package in...
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