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A particle moves in the xy-plane under the action of a force such that the value of its linear momentum at any time is P x = 2 cos t, P y = 2 sin t. The angle between and at time t is (A)0 o (B)180 o (C)90 o (D)30 o

A particle moves in the xy-plane under the action of a force such that the value of its linear momentum at any time is Px = 2 cos t,
Py = 2 sin t. The angle between and at time t is
(A)0o
(B)180o
(C)90o
(D)30o

Grade:upto college level

3 Answers

Amit Saxena
35 Points
7 years ago

621_88596_p4.JPG

gyan prakash
38 Points
7 years ago

P=√Px2+Py2 =√(2cost)2+(2sint)2 =2 which is a constant means the angle betn them is 90ο.

Shivam
11 Points
4 years ago
I didn`t understood that how is momentum constant and if it is so how angle is 90 degree.

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