## Physics MCQ on Relative Velocity for NEET, JEE, Medical and Engineering Exam 2021

MCQ on Relative Velocity: Previous trends reveal that NEET/JEE aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations.

In this post we are providing you MCQ on Relative Velocity, which will be beneficial for you in upcoming NEET, AIIMS, JEE, WBJEE, Medical and Engineering Exams.

## MCQ on Relative Velocity

Q1. A man travelling in a bus moves from west to east with a speed of 40 km/hr. He observes that the raindrops are falling vertically down. To another man standing on the ground, the rain will appear
a) to be falling vertically down
b) to be falling at an angle going from east to west
c) to be falling at an angle going from west to east
d) insufficient information is given to determine the direction of the rain

(c) to be falling at an angle going from west to east

Q2. A 150 m long train moves towards south at a speed of 10 m/s. A sparrow flying at a speed of 5 m/s towards north crosses the train. What is the time taken by the sparrow to cross the train?
a) 30 s
b) 10 s
c) 5 s
d) 15 s

(b) 10 s

Q3. A person who aims to reach the exact opposite point on the bank of a stream swims at a speed of 0.5 m/s at an angle of 1200 following the direction of the water flow. What is the speed of water in the stream?
a) 1 m/s
b) 0.5 m/s
c) 0.25 m/s
d) 0.433 m/s

(c) 0.25 m/s

Q4. A person who aims to reach the exact opposite point on the bank of a stream swims at a speed of 0.5 m/s at an angle of 1200 following the direction of the water flow. What is the speed of water in the stream?
a) 1 m/s
b) 0.25 m/s
c) 0.5 m/s
d) 0.433 m/s

(b) 0.25 m/s

Q5. On a rainy day, a girl standing on the road has to hold her umbrella at an angle of 300 with respect to the vertical to avoid getting drenched in the rain. She throws the umbrella and starts running at a speed of 10 km/hr. She notices that the raindrops are falling vertically on her head. What is the speed of the raindrops with respect to the ground?
a) 20 km/hr
b) 10 km/hr
c) 30 km/hr
d) 40 km/hr

(a) 20 km/hr

Q6. A deer being preyed upon by the lion runs at a speed of 9 m/s. The lion chases the deer running at a speed of 10 m/s. If the instantaneous separation of deer from the lion is 100 m. How long would it take the lion to catch the deer?
a) 1 second
b) 19 second
c) 900 second
d) 100 second

(d) 100 second

Q7. A river flows east to west at a speed 5 m/min. A man capable of swimming 10 m/min in still water is standing on the south bank of the river. He wants to swim across the river in the shortest time possible. Which of the following path should he choose?
a) Due North
b) Due North – East
c) Due North-East with double the speed of the river
d) None of the above

(a) Due North

Q8. Two bikes travelling in the same direction move at a speed of 30 km/hr. The bikes are separated by a distance of 5 km. What would the speed of the car travelling in the opposite direction be if it meets these bikes at an interval of 4 minutes?
a) 45 km/hr
b) 40 km/hr
c) 30 km/hr
d) 15 km/hr

(a) 45  km/hr

Q9. X moves at a speed of 65 km/hr while Y who is behind X moves at a speed of 80 km/hr. What is the relative velocity of Y with respect to X?
a) 60 km/hr
b) 80 km/hr
c) 145 km/hr
d) 15 km/hr

(d) 15 km/hr