Class 11 Physics Numerical Worksheet
1. A car moves 40 km towards east and then 30 km towards north.
Find:
(a) the resultant displacement
(b) the direction of displacement.
2. A particle moves with velocity 20 m/s at an angle of 60° with the
horizontal. Find its horizontal and vertical components of velocity.
3. A boat can travel with a speed of 12 km/h in still water. If the river
flows at 5 km/h, find the resultant velocity when the boat moves
perpendicular to the river flow.
4. A cyclist moves with a speed of 15 m/s towards north. Another
cyclist moves with a speed of 20 m/s towards east. Find the magnitude
and direction of their relative velocity. .
5. A ball is projected with a speed of 20 m/s at an angle of 30° with
the horizontal. Find:
(a) time of flight
(b) maximum height
(c) horizontal range.
6. A projectile is thrown with velocity 40 m/s at an angle of 45°.
Calculate the horizontal range. (Take g = 9.8 m/s²)
7. A stone is projected horizontally from the top of a tower 80 m high
with a speed of 15 m/s. Find:
(a) time taken to hit the ground
(b) horizontal distance travelled.
8. A projectile has a time of flight of 6 s. If g = 9.8 m/s² and angle of
projection is 45°, calculate:
(a) initial velocity
(b) range of projectile
9. A cricketer throws a ball at 28 m/s making an angle of 35° with the
horizontal. Determine whether the ball can clear a boundary 70 m
away.
