10:52 Y ..N ll 80%horizontal. The rock strikes the ground a horizontal distance of25 m from the base of the building. Assume that the ground islevel and that the side of the building is vertical, How tall is thebuilding?4. An airplane flies horizontally with a speed of 250 m/s at an altitudeof 500 m. Assume that the ground is level. At what horizontaldistance from a target must the pilot release a bomb so as to hitthe target?5. A car is moving at a constant speed of 4 m/s in a circular track ofdiameter 6 m. (i) calculate the magnitude of the centripetalacceleration, and (ii) if its speed is also increasing at the rate of 5meters per second per second, what is the tangentialacceleration.6. At an instant when a 4.0-kg object has an acceleration equal to(5i + 3]) m/s?, one of the two forces acting on the object is knownto be (12i + 22j) N. Determine the other force acting on theobject.7. If F = 4.0 N and m = 2.0 kg, what is the magnitude a of theacceleration for the block shown below? The surface is frictionless.8. A 5.0-kg mass is suspended by a string from the ceiling of anelevator that is moving upward with a speed which isdecreasing at a constant rate of 2.0 m/s in each second. Whatis the tension in the string supporting the mass?9. The horizontal surface on which the objects slide is frictionless. IfM = 2.0 kg, the tension in string 1 is 12 N. Determine F.F2M10.A 6.00 kg block is placed on a 30.0° incline andconnected to another block on a 36.87° incline. Although thesurfaces are frictionless the blocks do not move. What is themass in kilograms of the block on the 36,87° incline?II

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4. An airplane flies horizontally with a speed of 250 m/s at an altitude of 500 m. Assume that the ground is level. At what horizontal distance from a target must the pilot release a bomb so as to hit the target?

4. An airplane flies horizontally with a speed of 250 m/s at an altitude of 500 m. Assume that the ground is level. At what horizontal distance from a target must the pilot release a bomb so as to hit the target?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 51P: In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind...

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