Ahmed carrying a weight of 50 N walks a distance of 2m as shown in figure. The work done by him is (a) 100 N (b) ON (c) 50 N (d) 490 N Dcon et oon If two vectors Å and B are parallel to each other, then their cross product, Å xB = (c) AB Cose (a) Zero (b) AB (d) VA² + B² A boy travels from A to B and then from B to C in a bicycle. The total displacement is 3m (a) 7m (b) 0m (c) 5 m (d) 1 m 4m A car travels 30 km, in a direction 50° north of east. The eastward (horizontal) component of the car's

Ahmed carrying a weight of 50 N walks a distance of 2m as shown in figure. The work done by him is (a) 100 N (b) ON (c) 50 N (d) 490 N Dcon et oon If two vectors Å and B are parallel to each other, then their cross product, Å xB = (c) AB Cose (a) Zero (b) AB (d) VA² + B² A boy travels from A to B and then from B to C in a bicycle. The total displacement is 3m (a) 7m (b) 0m (c) 5 m (d) 1 m 4m A car travels 30 km, in a direction 50° north of east. The eastward (horizontal) component of the car's

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

Ahmed carrying a weight of 50 N walks a distance of 2m as shown in figure. The
work done by him is
1.
(a) 100 N
(b) ON
(c) 50 N
(d) 490 N
Dacon at Monon
If two vectors Å and B are parallel to each other, then their cross product, ẢxB =
(d) VA? + B²
%3D
(a) Zero
(b) AB
(c) AB Cose
2.
A boy travels from A to B and then from B to C in a bicycle. The
total displacement is
3m
(a) 7m
(b) 0 m
(c) 5 m
(d) 1m
90
4m
A
A car travels 30 km, in a direction 50° north of east. The eastward (horizontal) component of the car's
displacement is
4.
(a) 22.98 km
(b) 35.75 km
(c) 30 km
(d) 19.28 km
If the height of an object from the ground is doubled, its gravitational potential energy.
(a) Remains the same (b) Increases 4 times
5.
(c) is doubled
(d) becomes zero
The mass of a stone is 250 g. Express this mass in Sl unit.
6. (a) 2.5 kg
(b) 0.250 kg
(c) 2.5 x 102 kg
(d) 250 x 106 kg
3.

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