Motion In A Plane (VSAQs)
Physics-1 | 4. Motion in a Plane – VSAQs:
Welcome to VSAQs in Chapter 4: Motion in a Plane. This page includes the most crucial FAQs for Very Short Answer Questions. Each answer is provided in simple English and follows the exam format. This approach helps you focus on key points and secure top marks in your final exams.
VSAQ-1 : When two right angled vectors of magnitude 7 units and 24 units combine, what is the magnitude of their resultant?
The magnitude of the resultant vector when two right-angled vectors of 7 units and 24 units combine is 25 units.
VSAQ-2 : Two forces of magnitudes 3 units and 5 units act at 600 with each other. What is the magnitude of their resultant?
The magnitude of the resultant force when two forces of 3 units and 5 units act at an angle of 60 degrees with each other is approximately 5.83 units.
VSAQ-3 : If A = (i) + (j). What is the angle between the vector A and X-axis?
The angle between vector A and the X-axis is 45 degrees.
VSAQ-4 : If P = 2i +4j +14K and Q = 4i +4j +10K find the magnitude of P +Q.
The magnitude of P + Q is approximately 11.53 units.
VSAQ-5 : What is the acceleration of a projectile at the top of its trajectory?
The acceleration of a projectile at the top of its trajectory is approximately 9.81 m/s² in the downward direction due to gravity.
VSAQ-6 : The vertical component of a vector is equal to its horizontal component. What is the angle made by the vector with x-axis?
The angle made by the vector with the x-axis is 45 degrees when the vertical component of the vector is equal to its horizontal component.
VSAQ-7 : Write the equation for the horizontal range covered by a projectile and specify when it will be maximum.
The equation for the horizontal range (R) covered by a projectile is:
R = (u^2 * sin(2θ)) / g
Where:
- u is the initial velocity of the projectile.
- θ is the launch angle.
- g is the acceleration due to gravity (approximately 9.81 m/s²).
The horizontal range will be maximum when the launch angle (θ) is 45 degrees.