| ⇦ | 
| ⇨ |
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: - In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
- A source and an observer approach each other with same velocity 50 m/s. If the frequency
- The input resistance of a silicon transistor is 100 W. Base current is changed
- Out of the following which pair of quantities does not have same dimensions?
- Which of the following transitions in hydrogen atoms emit photons of highest frequency?
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
- A source and an observer approach each other with same velocity 50 m/s. If the frequency
- The input resistance of a silicon transistor is 100 W. Base current is changed
- Out of the following which pair of quantities does not have same dimensions?
- Which of the following transitions in hydrogen atoms emit photons of highest frequency?
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