a = 1, b = 2, c = 3
a = 3, b = 2, c = 1
a = 6, b = 2, c = 3
none of these
none of these
A,B
A
D
A,B &D
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
How many minimum number of non-zero vectors in different planes can be added to give zero resultant?
2
3
4
5
A man standing on a road holds his umbrella at 30° with the vertical to keep the rain away. He throws the umbrella and starts running at 10 km/hr. He finds that raindrops are hitting his head vertically, the speed of raindrops with respect to the road will be
10 km/hr
20 km/hr
30 km/hr
40 km/hr
A 150 m long train is moving to north at a speed of 10 m/s. A parrot flying towards south with a speed of 5 m/s crosses the train. The time taken by the parrot the cross to train would be ____.
30 s
15 s
8 s
10 s
A move with 65 km/h while B is coming back of A with 80 km/h. The relative velocity of B with respect to A is ____.
80 km/h
60 km/ h
15 km/h
145 km/h