Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Amit Saxena Grade: upto college level
A vector A ⃗ makes an angle of 20° and B ⃗ makes an angle of 110° with the X-axis. The magnitudes of these vectors are 3 m and 4 m respectively. Find the resultant.
3 years ago

Navjyot Kalra
654 Points
Sol. As shown in the figure,

The angle between A ⃗ and B ⃗ = 110° - 20° = 90°
|A ⃗ | = 3 and |B ⃗ | = 4m
Resultant R = √(A^2+B^2+2AB cos θ) = 5 m
Let β be the angle between R ⃗ and A ⃗
Β = tan-1 ((4 sin⁡〖90°〗)/(3+4 cos 90°)) = tan-1 (4/3) = 53°
∴ Resultant vector makes angle (53° + 20°) = 73° with x-axis.
3 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on General Physics

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details
• Kinematics & Rotational Motion
• OFFERED PRICE: Rs. 636
• View Details