| ⇦ | 
| ⇨ |
The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t² metre. The angle of projection is
Options
(a) sin⁻¹ (4/5)
(b) sin⁻¹ (3/5)
(c) sin⁻¹ (4/3)
(d) sin⁻¹ (3/4)
Correct Answer:
sin⁻¹ (4/5)
Explanation:
x = 36t ⇒ dx/dt = 36
.·. vₓ = 36 m/s and 2y = 96t – 9.8t²
⇒ y = 48t – 9.8 t² ⇒ dy/dt = 48 – 9.8t
.·. vᵧ = 48 – 9.8t
At t = 0
⇒ vᵧ = 48
.·. tan θ = vᵧ / vₓ = 48 / 36 = 4 / 3
⇒ sin θ = 4/5 ⇒ θ = sin⁻¹ (4/5)
Related Questions: - Two particles A and B having equal charges, after being accelerated
- A 100Ω resistance and a capacitor of 100Ω reactance are connected in series
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- In a given process on an ideal gas, dW=0 and dQ<0. Then for the gas
- A boy is trying to start a fire by focusing sunlight on a piece of paper using
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two particles A and B having equal charges, after being accelerated
- A 100Ω resistance and a capacitor of 100Ω reactance are connected in series
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- In a given process on an ideal gas, dW=0 and dQ<0. Then for the gas
- A boy is trying to start a fire by focusing sunlight on a piece of paper using
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply