Part 1
A particle of mass 2 kg is initially at rest. A force acts on it whose magnitude changes with time. The force – time graph is shown below. The velocity of the particle after 10 s is
11
Sep
A particle of mass 2 kg is initially at rest. A force acts on it whose magnitude changes with time. The force – time graph is shown below. The velocity of the particle after 10 s is A particle of mass 2 kg is initially at rest. A force acts on it whose magnitude changes [...]
A block at rest slides down a smooth inclined plane which makes and angle 60 degree with the vertical and it reaches the ground in t1 seconds. Another block is dropped vertically from the same point and reaches the ground in t2 seconds. What is the ratio of t1 : t2 ?
11
Sep
A block at rest slides down a smooth inclined plane which makes and angle 60 degree with the vertical and it reaches the ground in t1 seconds. Another block is dropped vertically from the same point and reaches the ground in t2 seconds. What is the ratio of t1 : t2 ? A projectile has [...]
A toy car of mass 2 kg is moving towards -ve y axis with the velocity of 5 m/s. It takes a turn towards x axis with a velocity of 0.4 m/s. how much is the change in the linear momentum of the car due to the turn ?
11
Sep
A toy car of mass 2 kg is moving towards -ve y axis with the velocity of 5 m/s. It takes a turn towards x axis with a velocity of 0.4 m/s. how much is the change in the linear momentum of the car due to the turn ? A projectile has a range R [...]
A projectile has a range R and time of flight T. If the range is doubled (by increasing the speed Of projection, without changing the angle of projection), the time of flight will become:
10
Sep
A projectile has a range R and time of flight T. If the range is doubled (by increasing the speed Of projection, without changing the angle of projection), the time of flight will become: A projectile has a range R and time of flight T. If the range is doubled (by increasing the speed Of [...]
A player throws a ball which reaches the other players in 4 sec.If the height of each player is 1.8 m. The maximum height attained by the ball above the ground
10
Sep
A player throws a ball which reaches the other players in 4 sec.If the height of each player is 1.8 m. The maximum height attained by the ball above the ground A player throws a ball which reaches the other players in 4 sec.If the height of each player is 1.8 m. The maximum height [...]
Four projectile are projected with the same speed at angles 20°, 35°, 60° and 75º with the horizontal. The range will be the longest for the projectile whose angle of projection is.
10
Sep
Four projectile are projected with the same speed at angles 20°, 35°, 60° and 75º with the horizontal. The range will be the longest for the projectile whose angle of projection is. 35° 60° and 75º with the horizontal. The range will be the longest for the projectile whose angle of projection is. Four projectile [...]
A projectile has the same range R when the maximum height attained by it either H₁ or H₂. The R, H₁ and H2 will be related as
10
Sep
A projectile has the same range R when the maximum height attained by it either H₁ or H₂. The R, H₁ and H2 will be related as A projectile has the same range R when the maximum height attained by it either H₁ or H₂. The R H₁ and H2 will be related as September [...]
A projectile thrown at an angle of 30 with the horizontal has a range R1 and attains a maximum height h1 . Another projectile thrown, with the same speed, at an angle 30 with the vertical, has a range R2 and attains a maximum height h2 . The relation between R1 and R2 is
10
Sep
A projectile thrown at an angle of 30 with the horizontal has a range R1 and attains a maximum height h1 . Another projectile thrown, with the same speed, at an angle 30 with the vertical, has a range R2 and attains a maximum height h2 . The relation between R1 and R2 is A [...]
A body is projected with kinetic energy K at an angle of 60° with the horizontal. Its kinetic energy at the highest point of its trajectory will be
10
Sep
A body is projected with kinetic energy K at an angle of 60° with the horizontal. Its kinetic energy at the highest point of its trajectory will be A body is projected with kinetic energy K at an angle of 60° with the horizontal. Its kinetic energy at the highest point of its trajectory will [...]
A body thrown along a frictionless inclined plane of angle of inclination 30 degrees covers a distance 40m along the plane. If the body is projected with the same speed at an angle of 30 degree with the ground, it will have a range of(take g=10m/s)
10
Sep
A body thrown along a frictionless inclined plane of angle of inclination 30 degrees covers a distance 40m along the plane. If the body is projected with the same speed at an angle of 30 degree with the ground, it will have a range of(take g=10m/s) A bomb is dropped from an aeroplane when it [...]