Applications of Newton’s Laws
PHXI05:LAWS OF MOTION

363185 In a lift moving up with an acceleration of \(5\,m{s^{ - 2}}\), a ball is dropped from a height of \(1.25\,m\). The time taken by the ball to reach the floor of the lift is ______ (nearly) (\(g = 10\,m{s^{ - 2}}\))

1 0.3 second
2 0.2 second
3 0.16 second
4 0.4 second
PHXI05:LAWS OF MOTION

363186 The apparent weight of a freely falling person is

1 Zero
2 Increased
3 Decreased
4 Constant
PHXI05:LAWS OF MOTION

363187 A bob is hanging inside a car through a massless string as shown in figure. The car is moving with constant acceleration \(a\), horizontally
The bob makes an angle \(\theta \) with the vertical at equilibrium. Then which of the following statement is correct?
supporting img

1 \(\theta \) is independent of \(a\)
2 With increase of \(a\), \(\theta \) will decrease
3 With decrease of \(a\), \(\theta \) will decrease
4 None of these
PHXI05:LAWS OF MOTION

363185 In a lift moving up with an acceleration of \(5\,m{s^{ - 2}}\), a ball is dropped from a height of \(1.25\,m\). The time taken by the ball to reach the floor of the lift is ______ (nearly) (\(g = 10\,m{s^{ - 2}}\))

1 0.3 second
2 0.2 second
3 0.16 second
4 0.4 second
PHXI05:LAWS OF MOTION

363186 The apparent weight of a freely falling person is

1 Zero
2 Increased
3 Decreased
4 Constant
PHXI05:LAWS OF MOTION

363187 A bob is hanging inside a car through a massless string as shown in figure. The car is moving with constant acceleration \(a\), horizontally
The bob makes an angle \(\theta \) with the vertical at equilibrium. Then which of the following statement is correct?
supporting img

1 \(\theta \) is independent of \(a\)
2 With increase of \(a\), \(\theta \) will decrease
3 With decrease of \(a\), \(\theta \) will decrease
4 None of these
PHXI05:LAWS OF MOTION

363185 In a lift moving up with an acceleration of \(5\,m{s^{ - 2}}\), a ball is dropped from a height of \(1.25\,m\). The time taken by the ball to reach the floor of the lift is ______ (nearly) (\(g = 10\,m{s^{ - 2}}\))

1 0.3 second
2 0.2 second
3 0.16 second
4 0.4 second
PHXI05:LAWS OF MOTION

363186 The apparent weight of a freely falling person is

1 Zero
2 Increased
3 Decreased
4 Constant
PHXI05:LAWS OF MOTION

363187 A bob is hanging inside a car through a massless string as shown in figure. The car is moving with constant acceleration \(a\), horizontally
The bob makes an angle \(\theta \) with the vertical at equilibrium. Then which of the following statement is correct?
supporting img

1 \(\theta \) is independent of \(a\)
2 With increase of \(a\), \(\theta \) will decrease
3 With decrease of \(a\), \(\theta \) will decrease
4 None of these