QuestionKart - Questions

cds- Question :

A boy throws four stones: of same shape, size and weight with equal speed at different initial angles with the horizontal line. If the angles are 15°, 30°, 45° and 60°, at which angle the stone will cover the maximum distance horizontally?

A :

(a) 15°

B :

(b) 30°

C :

D :

(d} 60°

cds- Question :

The time period of a simple pendulum having a spherical wooden bob is 2 s. If the bob is replaced by a metallic one twice as heavy, the time period will be

A :

more than 2 s

B :

2 s

C :

1 s

D :

less than 1 s

cds- Question :

A bus travels at a speed of 50 km per hour to go from its origin to’ its destination at a distance of 300 km and travels at a speed of 60 km per hour to return to the origin. What is the average speed of the bus?

A :

54-55 km per hour

B :

55 km per hour

C :

55°55 km per hour

D :

54 km per hour

cds- Question :

the force acting on a particle executing simple harmonic motion is

A :

directly proportional to the displacement and is directed away the mean position

B :

inversly proportional to the displacement and is directed towards the mean position

C :

directly proportional to the displacement and is directed towards the mean position

D :

inversely proportional to the displaement and is directed away from the mean position

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