easynov

JEE Advanced 2015 Questions › General Physics questions › easynov

A projectile is fired horizontally with a velocity of 98 m/s from 490 m high . find
1) time taken to reach ground
2) the distance of target from the hill
3)the velocity with which the body strikes the ground.

#Physics #General Physics

UP 0 DOWN 0 0 5
Post on FacebookPost anonymously?

5 Answers

Subhomoy Bakshi ·2010-05-11 14:48:18

1) same time as a body dropped from rest!!!

UP 0 DOWN 0
Post on FacebookPost anonymously?

Subhomoy Bakshi ·2010-05-11 14:50:26

1) t=√2X4909.8=10s

2) horizontal dist travelled = V_xXt=980 m

UP 0 DOWN 0
Post on FacebookPost anonymously?

Subhomoy Bakshi ·2010-05-11 14:52:32

V_y=gt=98 m/s
V_x=98 m/s

V=98√2 m/s

UP 0 DOWN 0
Post on FacebookPost anonymously?

inovate ·2010-05-11 15:01:47

earth is revolving around sun . if the distance of the earth from the sun is reduced to 1/4th of the present distance , then the present day length reduced to
1 1/4
2 1/2
3 1/8
4 1/6

UP 0 DOWN 0
Post on FacebookPost anonymously?

Subhomoy Bakshi ·2010-05-11 15:04:25

used to think that the length of day depends upon rotation of earth abt its tilted axis...teach me basics then....wat afffects the length of day!!![2]

UP 0 DOWN 0
Post on FacebookPost anonymously?

Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

Close [X]

easynov

5 Answers

Your Answer

Add Image

Similar Questions