CBSE Class 11-science Answered
One afternoon,a couple walks three-fourths of the way of a circular lake of radius 1.50km.They start on west side side of the lake and south tho begin with.(a) What is the distance they travel (b) What are the magnitude and dirrection (relative to due east) of he couple's dispalcement?
Asked by Aayush Priyam | 04 Jul, 2014, 01:14: PM
Expert Answer
Radius of the circular lake = 1.5 km
a) The distance travelled by the couple is
b) The total displacement is AB
AB2 = 1.52 + 1.52 = 4.5
AB = 2.12 km
for calculating angle
the direction is 45 degree north of east.
Answered by Ravindra Kapal | 08 Jul, 2014, 12:00: AM
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