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TSD To and Fro Journey - 4 Moving point simplified
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TSD Moving point problem simplified

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Visit my youtube channel BHARAT GUPTA-RADIX .

U
SS
sir, do we need to study any other book Or the content of this course enough...
Naveen Sakh
6 months ago
Read as much as you can i will never day ki ( mera enough hoga ) I want to you improve continuously and for that jitni knowledgeable material available ho access kro
Naveen Sakh
6 months ago
Never say*
SS
Surabhi Sharma
6 months ago
ok... thank you for the reply...
SS
Surabhi Sharma
6 months ago
Naveen Sakh
6 months ago
Ya you can purchase kvs it's good
SS
Surabhi Sharma
6 months ago
thanks sir...
Ns
in 9:34 to calculate distance travelled by aryan why we divide 11 by 12? the ratio is 11:1.
At 11:16, The moving point should be Mohan, not the house. But we have considered the speed of moving point to be zero according to the speed of the house( which is at rest). Please explain.
Sb
Shubham bhatia
a month ago
i have the same doubt.
Sb
Shubham bhatia
a month ago
i guess this is the reason "that is because in 1ques we are considering forward distance so rahul becomes the moving point and in 2nd we need backward distance so the house becomes the moving point"
A
in last Question dog speed is 70 ÷70 =1:1 but you take 60÷60 is also 1:1 . I think 60 ÷60 is error?
G
how distance 1200 came sir
D
why did we divide by 2 at 12:39
A
Alok
5 months ago
Bcz dividing 70÷70 give 1 by 1 mines 1:1 =2, so it's divide by 2. I hope you got!
1. TIME, SPEED AND DISTANCE To and Fro journey- 4 Moving Point

2. To and Fro journey Moving Point Aryan runs at the speed of 40 m/min. After 5 min Rahul runs towards Aryan at the speed of 50 m/min. Rahul's dog also runs at the speed of 60 m/min. with Rahul. This dog reaching Aryan and came to Rahul. Dog moving in same manner till Rahul catches Aryan. How much distance has been travelled by dog towards Aryan? a. 1100 meter b. 1000 meter C. 200 meter d. 720 meter

3. To and Fro journey Moving Point Aryan runs at the speed of 40 m/min. After 5 min Rahul runs towards Aryan at the speed of 50 m/min. Rahul's dog also runs at the speed of 60 m/min. with Rahul. This dog reaching Aryan and came to Rahul. Dog moving in same manner till Rahul catches Aryan. How much distance has been travelled by dog towards Aryan? a. 1100 meter b. 1000 meter C. 200 meter d. 720 meter Rahe! io

4. To and Fro journey Moving Point Aryan runs at the speed of 40 m/min. After 5 min Rahul runs towards Aryan at the speed of 50 m/min. Rahul's dog also runs at the speed of 60 m/min. with Rahul. This dog reaching Aryan and came to Rahul. Dog moving in same manner till Rahul catches Aryan. How much distance has been travelled by dog towards Aryan? a. 1100 meter b. 1000 meter c. 200 meter d. 720 meter Dog df Rabwl de do dl 12

5. To and Fro journey Moving Point Mohan's house is at the top of a hill. He is moving up the hill towards his house at a constant speed of 45 kmph. His pet dog, Tommy, spots the car from the top of the hill when it is 540 km away from the top. The dog starts moving down the hill comes to the car and again goes back to the top of the hill. This movement of dog continue till Mohan reaches his house. The speed of the dog is 70 km/h in both down hill and uphill movement. Find the total distance covered by the dog towards Mohan. a. 840 km b. 420 km C. 280 km d. CBD

6. To and Fro journey Moving Point Mohan's house is at the top of a hill. He is moving up the hill towards his house at a constant speed of 45 kmph. His pet dog, Tommy, spots the car from the top of the hill when it is 540 km away from the top. The dog starts moving down the hill comes to the car and again goes back to the top of the hill. This movement of dog continue till Mohan reaches his house. The speed of the dog is 70 km/h in both down hill and uphill movement. Find the total distance covered by the dog towards Mohan. a. 840 km b. 420 km C. 280 km d. CBD

7. To and Fro journey Moving Point Mohan's house is at the top of a hill. He is moving up the hill towards his house at a constant speed of 45 kmph. His pet dog, Tommy, spots the car from the top of the hill when it is 540 km away from the top. The dog starts moving down the hill comes to the car and again goes back to the top of the hill. This movement of dog continue till Mohan reaches his house. The speed of the dog is 70 km/h in both down hill and uphill movement. Find the total distance covered by the dog towards Mohan. a. 840 km b. 420 km c. 280 km d. CBD P/n de