# CBSE Class 11-Physics: Motion in One Plane Assignment 1: Questions

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## Paragraph Type Question

A particle moves such a way that

Where **i** and **j** are unit vectors along x and y direction. A and m are constant

**Question 1:**

Find the trajectory of the particle

a. Circle

b. Parabola

c. Eclipse

d. None of the above

**Answer:**

a. Circle

**Question 2**

Find the average velocity of the particle from to

a.

b.

c.

d. None of the above

**Answer:**

a.

**Question 3:**

Find the scalar Product of Acceleration and velocity at any point t

a.

b.

c.

d. None of the above

**Answer:**

c.

**Question 4:**

Find the tangential acceleration at any point of time t

a.

b.

c.

d. None of the above

**Answer:**

b.

**Question 5:**

Find the radial acceleration at any point of time

a.

b.

c.

d. None of the above

**Answer:**

b.

**Question 6:**

Find the displacement vector and distance when

a.

b.

c.

d.

**Answer:**

a.

## Multiple Choice Question

**Question 7:**

A wind is blowing in the North direction at the speed of . An airplane moves to a point in the East which is away in . Find the velocity of the airplane with respect to the wind

a.

b.

c.

d. None of these

**Answer:**

**Question 8**

Consider the figure given below

a. Acceleration is positive during A to C And negative during C to B

b. Acceleration is maximum at C

c. Velocity is maximum at C

d. Average acceleration is zero during the journey

**Answer:**

(a), (b), (c), (d)

**Question 9:**

Two projectile A and B are having trajectory equation and

If the range is same for both the projectile A and B then which of the following option is true

a.

b.

c.

d. None of these

**Answer:**

a.