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
Hrishant Goswami Grade: 10
`         A man is sitting on the shore of a river. He is in the line of a 1.0 m long and is 5.5 m away from the centre of the boat. He wishes to throw an apple into the boat. If he can throw the apple only with a speed of 10 m/s, find the minimum and maximum angles of projection for successful shot. Assume that the point of projection and the edge of the boat are in the same horizontal level.`
3 years ago

## Answers : (1)

Jitender Pal
365 Points
```										Sol. When the apple just touches the end B of the boat.
x = 5 m, u = 10 m/s, g = 10 m/s2, θ = ?
x = (u^2  sin⁡〖2 θ〗)/10
⇒ 5 = (〖10〗^2  sin⁡〖2 θ〗)/10⇒ 5 = 10 sin 2 θ
⇒ sin 2 θ = 1/2 ⇒ sin 30° or sin 150°
⇒ θ = 15° or 75°
Similarly for end C, x = 6 m
Then 2 θ1 = sin–1 (gx/u2) = sin–1 (0.6) = 182° or 71°.
So, for a successful shot, θ may very from 15° to 18° or 71° to 75°.

```
3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

## Other Related Questions on Mechanics

View all Questions »
• Complete Physics Course - Class 12
• OFFERED PRICE: Rs. 2,756
• View Details
Get extra Rs. 413 off
USE CODE: COUPON10
• Complete Physics Course - Class 11
• OFFERED PRICE: Rs. 2,968
• View Details
Get extra Rs. 445 off
USE CODE: COUPON10