Mechanics Quiz

• 30

• 90

• 90

• 60

• 45

• 30

A football player kicked a ball at an angle of 22 to the horizontal with a velocity of 23 m/s towards the goal that is 18m away from him, then:
the time taken by the ball to reach the goal is ... s

• 0.84

• 2.09

• 5.16

• 8.94

A football player kicked a ball at an angle of 22 to the horizontal with a velocity of 23 m/s towards the goal that is 18m away from him, then:

the vertical height of the ball from the ground when it reaches the goal is ... m

• 3.78

• 10.69

• 14.46

• 21.37

A man who stands on the top of a building projects a ball with an initial velocity 10 m/s in a direction that makes an angle of 30 with the horizontal. If the ball spent 4 seconds to reach the ground then:
the height of the building is ... m

• 180

• 100

• 210

• 225

A stone is projected horizontally with a velocity 9.8 m/s from a tower of height 100m, its speed 1 second after projection is ... m/s

• 9.8

• 4.9