ScienceClass 9CBSE
Q
In case of negative work the angle between the force and displacement is (a) 00 (b) 450 (c) 900 (d) 1800
A
Soln:
Answer is (d ) 1800
Explanation:
workdone =FS cosɵ Cos180= -1
Hence the answer is 1800
Soln:
Answer is (d ) 1800
Explanation:
workdone =FS cosɵ Cos180= -1
Hence the answer is 1800