Civil Engineering - Applied Mechanics - Discussion

Discussion Forum : Applied Mechanics - Section 1 (Q.No. 3)
3.
At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is
7 km/hrs
2 km/hrs
1 km/hrs
10 km/hrs
14 km/hrs.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 2 of 3.

Nitesh jayswal said:   9 years ago
By using Pythagoras theorem:-

8 * 8 + 6 * 6 = 100.
Square root of 100 = 10km/hr.

Onkar said:   5 years ago
Va = 6.
Vb = 8.
Va/b = √(va+vb)= √6^2 + 8^2 = √100.
Va/b = 10.
(4)

Amol Ashok Lande said:   1 decade ago
(V)x = 6.
(V)y = 8.
Vb/a = (36+64)^1/2.
Vb/a = 10 km/hr.

Prashant said:   7 years ago
But how we can say 10km/h is the velocity relative to A?

Saurabh said:   1 decade ago
It should be 10. Why it is 14 anyone explain this?

Alok kumar singh said:   7 years ago
I am not getting this, please Exlain in deeply.

Kirthi said:   8 years ago
I am not getting How it's 10? please explain.

Mohbat Baloch said:   8 years ago
By using Pythagoras theorem it is 10.
(1)

Ankur padalia said:   1 decade ago
Using the pythagoras theorem.

Kuldeep Singh umath said:   9 years ago
It should be 10. I agree.


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