Projectile from a Height

Q.

A bullet is dropped from the same height when another bullet is fired horizontally. They will hit the ground

1. One after the other

2. Simultaneously

3. Depends on the observer

4. None of the above

Q.

A ball is rolled off the edge of a horizontal table at a speed of 4 m/second. It hits the ground after 0.4 second. Which statement given below is true

1. It hits the ground at a horizontal distance 1.6 m from the edge of the table

2. The speed with which it hits the ground is 4.0 m/second

3. Height of the table is 0.8 m

4. It hits the ground at an angle of 60^o to the horizontal

Q.

An aeroplane is flying horizontally with a velocity of 600 km/h at a height of 1960 m. When it is vertically at a point A on the ground, a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

1. 1200 m

2. 0.33 km

3. 3.33 km

4. 33 km

Q.

A person standing on the top of a cliff, $171ft$ high, has to throw a packet to his friend standing on the ground 228 ft horizontally away. If he throws the packet directly aiming at the friend with a speed of $15.0ft/s$, how short will the packet fall? Give $g$ = $32ft/s^2$.

1. 0 feet the packet reaches his friend

2. 36 feet

3. 12 feet

4. 192 feet

Q.

A particle (A) is dropped from a height and another particle (B) is thrown in horizontal direction with speed of 5 m/sec from the same height, bith occuring at the same time. The correct statement is

1. Both particles will reach at ground simultaneously

2. Particle (B) will reach at ground first with respect to particle (A)

3. Particle (A) will reach at ground first with respect to particle (B)

4. Both particles will reach at ground with same speed

Q.

A food packet is dropped from a plane going at an altitude of 100 m. What is the path of the packet as seen from the plane?

1. A straight line in the south east direction

2. A straight line moving in the south west direction

3. A parabolic path

4. Straight line perpendicular to the horizontal

Q.

An aeroplane flying 490 m above ground level at 100 m/s, releases a block. How far on ground will it strike

1. 0.1 km

2. 1 km

3. 2 km

4. None

Q.

A bomb is dropped from an aeroplane moving horizontally at constant speed. When air resistance is taken into consideration, the bomb

1. Falls to earth exactly below the aeroplane

2. Fall to earth behind the aeroplane

3. Falls to earth ahead of the aeroplane

4. Flies with the aeroplane

Q.

An aeroplane is flying at a constant horizontal velocity of 600 km/hr at an elevation of 6 km towards a point directly above the target on the earth's surface. At an appropriate time, the pilot releases a ball so that it strikes the target at the earth. The ball will appear to be falling

1. On a parabolic path as seen by pilot in the plane

2. Vertically along a straight path as seen by an observer on the ground near the target

3. On a parabolic path as seen by an observer on the ground near the target

4. On a zig-zag path as seen by pilot in the plane

Q.

An aeroplane moving with 150 m/s drops a bomb from a height of 80 m so as to hit a target. What is the distance between the target and the point where the bomb is dropped? (given $g=10m/s^2$)

1. 605.3 m

2. 600 m

3. 80 m

4. 230 m