AIEEE 2005 | Motion in a Straight Line Question 101 | Physics

A parachutist after bailing out falls $$50$$ $$m$$ without friction. When parachute opens, it decelerates at $$2\,\,m/{s^2}.$$ He reaches the ground with a speed of $$3$$ $$m/s$$. At what height, did he bail out?

$$182$$ $$m$$

$$91$$ $$m$$

$$111$$ $$m$$

$$293$$ $$m$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

An automobile travelling with speed of 60 km/h, can brake to stop within a distance of 20 m. If the car is going twice as fast, i.e 120 km/h, the stopping distance will be

60 m

40 m

20 m

80 m

AIEEE 2004

MCQ (Single Correct Answer)

-1

A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in $${T \over 3}$$ seconds?

$${{8h} \over 9}$$ meters from the ground

$${{7h} \over 9}$$ meters from the ground

$${h \over 9}$$ meters from the ground

$${{7h} \over {18}}$$ meters from the ground

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