Q.22 plz explain (d) 15 J
(c) 13 J
21. The power (P) of an engine lifting a mass of 100 kg
(J&K CET 20131
upto neight of 10 m in 1 min is
163.3 W
(c) P = 10000 W
(b) P = 9800 W
(d) P = 5000 W
A body of mass 300 kg is moved through 10 m along a
smooth inclined plane of angle 300. The work done in
moving in joules is (take, g = 9.8 ) [EAM CET 20131
(a) 4900
(c) 14700
(b) 98
B. Force constants of two w A and B of the same
material are k and 2k respectively. If the two wires
are stretched e ually, then the ratio of work done in
stretching
is
[EAMCET 201:
