Physics, 23.02.2021 02:00 skylarladson2549
2. The man is 85kg The elevator now accelerates upward at 2.00 m/s?.
a. Construct a new force diagram for the man.
b. How much force does the floor now exert on the man?
Answers: 2
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You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.
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Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
2. The man is 85kg The elevator now accelerates upward at 2.00 m/s?.
a. Construct a new force diagr...
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