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03 Vis a vector 24.8 units in magnitude and points at an angle of 23.4° above the negative x axis (a) Sketch this vector. (b) Calculate and (c) Use and V to obtain (again) the magnitude and direction of V
Os (ID A grasshopper hops along a level road. On each hop, the grashopper launches itself at angle of 90-45o and achieves a range R-0.80 grasshopper launches itself at angle What is the average horizontal speed of the grasshopper as it hops along the road? Assume that the time spent on the ground between hops is negligible.
06 A force of 35.0 N is required to start a 6.0-kg (a) What is the coefficient of static friction between the box and the floor? (b) If the 35.0-N force continues, the box accelerates at 0.60 ms What is the coefficient of kinetic friction?
What is the mass of a 68-kg astronaut (a) on Earth, g 9.8 ms-2 (b) on the Moon, g-1.7 ms2 (d) in outer space traveling with constant velocity? What is the weight of a 68-kg astronaut (e) on Earth, g -9.8ms (f) on the Moon, g =1.7w (g) on Mars. g 3.7 ms? (h) in outer space traveling with constant velocity?
Q1. Jim stands beside a wide river and wonders how wide it is. He spots a large rock on the bank directly across from him. He then walks upstream 65 strides and judges that the angle between him and the rock, which he can still see, is now at an angle of 30° downstream Jim measures his stride to be about 0.8 m long. Draw a diagram. Estimate the width of the river.
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Answer #1

23.4° 248c0823千 こ24-8 sin(23.4) vy= 9.4s units. 22 1 9.es V2 24- unit 2 Vo= 2.8 m |c

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  • What is the mass of a 68-kg astronaut (a) on Earth, g 9.8 ms-2 (b) on...

    What is the mass of a 68-kg astronaut (a) on Earth, g 9.8 ms-2 (b) on the Moon, g-1.7 ms2 (d) in outer space traveling with constant velocity? What is the weight of a 68-kg astronaut (e) on Earth, g -9.8ms (f) on the Moon, g =1.7"w" (g) on Mars. g 3.7 ms? (h) in outer space traveling with constant velocity?

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