Kinematics 5 Question 2
4. A plane is inclined at an angle
[Take,
(2019 Main, 10 April I)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 4. (b)
Solution:
- When a projectile is projected at an angle
Components of
We can also resolve acceleration due to gravity into its components along and perpendicular to plane as shown below
So, we can now apply formula for range, i.e. net horizontal displacement of the particle as
where,
Using formula for time of flight, we have
From Eqs. (i) and (ii), we have
Range up the inclined plane is
Here,
So,
Now,
