MEDIUM
11th Mizoram Board
IMPORTANT
Earn 100

Rain is falling vertically with a speed of 30 m s-1. A woman rides a bicycle with a speed of 10 m s-1 in the north to south direction. What is the direction in which she should hold her umbrella?

Important Questions on Motion in a Plane

MEDIUM
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.13
A man can swim with a speed of 4.0 km/h in still water. How long does he take to cross a river 1.0 km wide if the river flows steadily at 3.0 km/h and he makes his strokes normal to the river current? How far down the river does he go when he reaches the other bank?
HARD
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.14
In a harbour, wind is blowing at the speed of 72 km/h and the flag on the mast of a boat anchored in the harbour flutters along the N-E direction. If the boat starts moving at a speed of 51 km/h to the north, what is the direction of the flag on the mast of the boat?
MEDIUM
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.15
The ceiling of a long hall is 25 m high. What is the maximum horizontal distance that a ball thrown with a speed of 40 m/s can go without hitting the ceiling of the hall?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.16
A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.17
A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone?
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.18
An aircraft executes a horizontal loop of radius 1.00 km with a steady speed of 900 km/h. Compare its centripetal acceleration with the acceleration due to gravity.
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.19
The net acceleration of a particle in a circular motion is always along the radius of the circle towards the centre.
EASY
11th Mizoram Board
IMPORTANT
PHYSICS PART 1 TEXTBOOK FOR CLASS XI>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.19
The velocity vector of a particle at a point is always along the tangent to the path of the particle at that point.