# AIIMS / NEET 2019 – Physics: Newton’s laws of motion Lecture – 5 (Constraint motion) - Videos

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Concepts of Constraint motion

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1. someone guide me i am getting 100 m/s is i am correct or not?
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Vacos37° = 60
Va= 75m/s

Vbcos53° = 75
Vb= 100m/s

2. In today's lecture,in the first example 20 m/s is taken as the component of velocity of the block B but why we didn't take the component of 20 m/s to find the velocity of the block afterall the string was pulling the block in its direction?

3. In today's lecture,in the first example 20 m/s is taken as the component of velocity of the block B but why we didn't take the component of 20 m/s to find the velocity of the block afterall the string was pulling the block in its direction?

4. In today's lecture,in the first example 20 m/s is taken as the component of velocity of the block B but why we didn't take the component of 20 m/s to find the velocity of the block afterall the string was pulling the block in its direction?

5. With huge respect…
Sir , you've made the difference b/w a teacher and a lecturer..
Thanks for teaching us and for making physics the lovely one ..

6. sir last wale question mein ye -10 aaya hai to direction to downwards honi chaiye beacuse previous lectures mein aapne bataya tha ki if direction is downwards then consider the -ive sign with the value.