1) Rhea is driving north in a straight line. After driving for 2.4 kilometers, she turns...
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1) Rhea is driving north in a straight line. After driving for 2.4 kilometers, she turns west, and drives for 3.1 km. At the end of her drive, what is the magnitude of her displacement vector? a. 3.9 b. 2.3 c. 5.5 d. 2.8 (km) 2)A soccer ball is kicked with an initial velocity of 14.1meters per second at an angle of 31.6 degrees above horizontal. What is the horizontal component of the velocity vector when the ball is landing on the ground again? a. -9.81 b. 12.0 c. 7.38 d. -7.38 (m/s) 3)Lucius is pushing a shopping cart with a force of 21.0 N, at angle of 19.1 downward from the horizontal. If he pushes the cart 7.25 m, how much work has he done on it? a. 144 b. 181 c. 130 d. 152 (J) 4)A basketball player jumps into the air, and shoots the 505g basketball directly eastward with a force of 14.9N. What is the force that the ball exerts on the player a. 14.9 to the west b. 14.9 to the east c. 7.52 to the west d. 7.52 to the east 5)Keller is pushing a pallet jack through a warehouse. The pallet jack has a total mass of 107kg. In order to maintain a constant velocity, Keller must push with a force of 128.1N. What is the coefficient of kinetic friction between the pallet jack and the ground a. 0.12 b. 0.24 c. 0. 19 d. 0.84 6)The planet Mars has a mass of 6.42*1023kg, and a radius of 3390km. How much would an astroid with a mass of 570kg weigh on the surface of Mars a. 1750 b. 2130 c. 15800 d. 11400 7)Cory is riding his bicycle directly east. In 2.0 minutes, he covers 1100 meters of distance. What is his velocity? a. 11 b. 550 c. 9.2 d. -9.2 (m/s) 8)A ferry is crossing a river. The ferry is headed due north with a speed of 4.8m/s relative to the water. If the river's velocity is 2.1m/s east, what will the ferry's velocity be relative to an on-shore observer? a. 5.2 m/s at 24 E of N b. 5.2 m/s at 28 E of N C. 4.9 m/s at 28 E of N d. 4.9m/s at 62 E of N 9)Jody is spinning a 635g weight tied to a string over her head. The string is 0.88 m long, and the weight is moving with a speed of 5.35m/s. What is the centripetal force pulling the weight inward? a. 3.86 b.20.6 c. 5.68 d. 18.7 (N) 1) Rhea is driving north in a straight line. After driving for 2.4 kilometers, she turns west, and drives for 3.1 km. At the end of her drive, what is the magnitude of her displacement vector? a. 3.9 b. 2.3 c. 5.5 d. 2.8 (km) 2)A soccer ball is kicked with an initial velocity of 14.1meters per second at an angle of 31.6 degrees above horizontal. What is the horizontal component of the velocity vector when the ball is landing on the ground again? a. -9.81 b. 12.0 c. 7.38 d. -7.38 (m/s) 3)Lucius is pushing a shopping cart with a force of 21.0 N, at angle of 19.1 downward from the horizontal. If he pushes the cart 7.25 m, how much work has he done on it? a. 144 b. 181 c. 130 d. 152 (J) 4)A basketball player jumps into the air, and shoots the 505g basketball directly eastward with a force of 14.9N. What is the force that the ball exerts on the player a. 14.9 to the west b. 14.9 to the east c. 7.52 to the west d. 7.52 to the east 5)Keller is pushing a pallet jack through a warehouse. The pallet jack has a total mass of 107kg. In order to maintain a constant velocity, Keller must push with a force of 128.1N. What is the coefficient of kinetic friction between the pallet jack and the ground a. 0.12 b. 0.24 c. 0. 19 d. 0.84 6)The planet Mars has a mass of 6.42*1023kg, and a radius of 3390km. How much would an astroid with a mass of 570kg weigh on the surface of Mars a. 1750 b. 2130 c. 15800 d. 11400 7)Cory is riding his bicycle directly east. In 2.0 minutes, he covers 1100 meters of distance. What is his velocity? a. 11 b. 550 c. 9.2 d. -9.2 (m/s) 8)A ferry is crossing a river. The ferry is headed due north with a speed of 4.8m/s relative to the water. If the river's velocity is 2.1m/s east, what will the ferry's velocity be relative to an on-shore observer? a. 5.2 m/s at 24 E of N b. 5.2 m/s at 28 E of N C. 4.9 m/s at 28 E of N d. 4.9m/s at 62 E of N 9)Jody is spinning a 635g weight tied to a string over her head. The string is 0.88 m long, and the weight is moving with a speed of 5.35m/s. What is the centripetal force pulling the weight inward? a. 3.86 b.20.6 c. 5.68 d. 18.7 (N)
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Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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