Inertial vs Non Inertial Frames

Q.

Will a man in a lift in space accelerating up with an acceleration g feel any different from a man in a stationary lift on Earth?

1. He will feel lighter

2. He will feel no difference

3. Data insufficient

4. He will feel heavier

Q.

A particle stays at rest as seen in a frame. We can conclude that

1. the frame is inertial

2. resultant force on the particle is zero

3. the frame is inertial if the resultant force on the particle is zero

4. The frame is non-inertial if there is a non-zero resultant force.

Q.

A particle is found to be at rest when seen from a frame $S_1$ and moving with a constant velocity when seen from another frame $S_2$. Mark out the possible options.

1. Both the frames are inertial.

2. Both the frames are non-inertial.

3. is inertial and is non-inertial.

4. is non-inertial and is inertial.

Q.

Rajat is sitting in an open cart that moves horizontally with an acceleration of $5m/s^2$ rightwards. Rajat is unaware of his acceleration, and throws a ball up in the air. He attempts at drawing a Free Body Diagram of the ball assuming his frame to be inertial. Which of these would closely resemble his free body diagram of the ball (neglect air drag)?

1. 

2. 

3. 

4. 

Q.

A bird is sitting in a wire cage hanging from the spring balance. Let the reading of the spring balance be $W_1$.If the bird flies about inside the cage, the reading of the spring balance is $W_2$. Which of the following is true

1. 

2. 

3. 

4. 

Q.

A bird is sitting in a large closed cage which is placed on a spring balance. It records a weight placed on a spring balance, It records a weight of 25 N. The bird (mass = 0.5kg) flies upward in the cage with an acceleration of $2m/s^2$. The spring balance will now record a weight of

1. 25 N

2. 26 N

3. 24 N

4. 27 N

Q. If a projectile is launched with angle $\theta$ to the horizontal inside a lift going up with acceleration a, its range is:

1. $u^{2}sin\left(2\theta \right)/g$
2. $u^{2}sin\left(2\theta \right)/a$
3. $u^{2}sin\left(2\theta \right)/(g+a)$
4. Man, this makes no sense to me.

Q. Newton's laws can be applied in a non-inertial frame

1. True
2. False

Q. A man in a lift in space accelerating up with an acceleration g will not feel any different from a man in a stationary lift on Earth.

1. True
2. False

Q. Newton's laws can be applied to all the particles of an object in an inertial frame.

1. False
2. True