Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping

Question is based on cross product. it is attached.

Question is based on cross product. it is attached.

Question Image

3 Answers

dipika kumari Sahoo
17 Points
4 years ago
while writing in vector form you will see it has FsSin@ (where @=theta angle). so while using i vector or j vector or k vector the whole sign changes so -that is the significance of writing in that form .
Naveen Shankar
31 Points
4 years ago
no the question is how do we know, for example calculate torque. F=2i+3j and r=4i. so is it F cross r or r cross F and how do we decide which is correct. According to the question they used F x r so how do we know this for other examples.
Manas Shukla
102 Points
4 years ago
Torque is always r x F and never F x r . If the answer in your book is given for F x r then it is wrong.
The example u gave torque should be -12k

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy


Get your questions answered by the expert for free