Answer number 6 1. What is the magnitude and direction of the resultant if we add the following displacements by the componentmethod? 10 ft directed 45º northeast, 12.0ft directed south, and 20.0 ft directed 45º South of West.2. Find the dot product of two vectors A=4i+3j and B =5i-2j.3. A sailor in a small boat encounters shifting winds. She sails 2km east, then 3.5km southeast, then anadditional distance in an unknown direction. Her final position is 5.8km directly east of the starting point. Findthe Magnitude and direction of the third leg of the Journey4. Suppose the velocity(v) of a car at any time(t) is given by the equation 60m/s + (0.5m/Derive the expression for the instantaneous acceleration at any given time and find the instantaneousacceleration at t=3s.5. An airplane taking off from a landing field has a run of 500m. If it starts from rest, moves with constantacceleration and makes the run in 30 sec, with what velocity in m/s did it take off?6. A body moving with constant acceleration covers the distance between two points 60m apart in 6 sec. Itsvelocity as it passes the second point is 15m/sec. What is the acceleration? (*7. A batted baseball leaves the bat at an angle of 30° above the horizontal, and is caught by an outfielder 400ftfrom the plate. What is the initial velocity of the ball?8. An elevator with mass 2000kg rises with an acceleration of 1m/s³. What is the tension in the supporting cable?

(6)Given values:- Distance between two points,(s)=60 m ----(1) Time taken,(t)=6 sec ---(2) Final…

Answered: 6. A body moving with constant…

6. A body moving with constant acceleration covers the distance between two points 60m apart in velocity as it passes the second point is 15m/sec. What is the acceleration? (

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Answer number 6

1. What is the magnitude and direction of the resultant if we add the following displacements by the component
method? 10 ft directed 45º northeast, 12.0ft directed south, and 20.0 ft directed 45º South of West.
2. Find the dot product of two vectors A=4i+3j and B =5i-2j.
3. A sailor in a small boat encounters shifting winds. She sails 2km east, then 3.5km southeast, then an
additional distance in an unknown direction. Her final position is 5.8km directly east of the starting point. Find
the Magnitude and direction of the third leg of the Journey
4. Suppose the velocity(v) of a car at any time(t) is given by the equation 60m/s + (0.5m/
Derive the expression for the instantaneous acceleration at any given time and find the instantaneous
acceleration at t=3s.
5. An airplane taking off from a landing field has a run of 500m. If it starts from rest, moves with constant
acceleration and makes the run in 30 sec, with what velocity in m/s did it take off?
6. A body moving with constant acceleration covers the distance between two points 60m apart in 6 sec. Its
velocity as it passes the second point is 15m/sec. What is the acceleration? (*
7. A batted baseball leaves the bat at an angle of 30° above the horizontal, and is caught by an outfielder 400ft
from the plate. What is the initial velocity of the ball?
8. An elevator with mass 2000kg rises with an acceleration of 1m/s³. What is the tension in the supporting cable?

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