Chapter 4 – Motion in Plane
A car travels a distance A to B at a speed of 40 km/h and returns back to A at a speed of 30 km/h. What is the average speed and average velocity of the whole journey ?
10
Sep
A car travels a distance A to B at a speed of 40 km/h and returns back to A at a speed of 30 km/h. What is the average speed and average velocity of the whole journey ? A car travels a distance A to B at a speed of 40 km/h and returns back [...]
A car moves on a straight road for first half time with the constant speed of 20 m/sec and the next half time with a constant speed of 60 m/sec.Then calculate the average speed
10
Sep
A car moves on a straight road for first half time with the constant speed of 20 m/sec and the next half time with a constant speed of 60 m/sec.Then calculate the average speed A car moves on a straight road for first half time with the constant speed of 20 m/sec and the next [...]
The coordinates of a moving particle at any time t are given by x = αt^3 and y = βt^3 . The speed of the particle at time t is given by :
10
Sep
The coordinates of a moving particle at any time t are given by x = αt^3 and y = βt^3 . The speed of the particle at time t is given by : The coordinates of a moving particle at any time t are given by x = αt^3 and y = βt^3 . The [...]
A particle moving, eastwards with a velocity of 5 m/s. In 10 s, its velocity changes to 5 m/s northwards. The average acceleration in this time is
10
Sep
A particle moving, eastwards with a velocity of 5 m/s. In 10 s, its velocity changes to 5 m/s northwards. The average acceleration in this time is A particle moving eastwards with a velocity of 5 m/s. In 10 s its velocity changes to 5 m/s northwards. The average acceleration in this time is September [...]
A particle is moving in x-y-plane at 2 m/s along x-axis. 2 seconds later, its velocity is 4 m/s in a direction making 60 with positive x-axis. Its average acceleration for this period of motion is :
10
Sep
A particle is moving in x-y-plane at 2 m/s along x-axis. 2 seconds later, its velocity is 4 m/s in a direction making 60 with positive x-axis. Its average acceleration for this period of motion is : A particle is moving in x-y-plane at 2 m/s along x-axis. 2 seconds later its velocity is 4 [...]
A person is standing on an open car moving with a constant velocity of 30 m/s on a straight upward direction and it returns to person after the car has moved 240 m. The speed and the angle of projection
10
Sep
A person is standing on an open car moving with a constant velocity of 30 m/s on a straight upward direction and it returns to person after the car has moved 240 m. The speed and the angle of projection A particle is projected with a velocity v so that its range on a horizontal [...]
Two balls are thrown horizontally from the top of a tower with velocities v1 and v2 in opposite directions at the same time. After how much time, the angle between velocities of balls becomes 90?
10
Sep
Two balls are thrown horizontally from the top of a tower with velocities v1 and v2 in opposite directions at the same time. After how much time, the angle between velocities of balls becomes 90? the angle between velocities of balls becomes 90? Two balls are thrown horizontally from the top of a tower with [...]
Two stones are projected so as to reach the same distance from the point of projection on a horizontal surface. The maximum height reached by one exceeds the other by an amount equal to half the sum of the heights attained by them. Then the angles of projection for the stones are (in degrees)
10
Sep
Two stones are projected so as to reach the same distance from the point of projection on a horizontal surface. The maximum height reached by one exceeds the other by an amount equal to half the sum of the heights attained by them. Then the angles of projection for the stones are (in degrees) A [...]
A particle is projected with a velocity v, so that its range on a horizontal plane is twice the greatest height attained. If g is acceleration due to gravity, then its range is:
10
Sep
A particle is projected with a velocity v, so that its range on a horizontal plane is twice the greatest height attained. If g is acceleration due to gravity, then its range is: A particle is projected with a velocity v so that its range on a horizontal plane is twice the greatest height attained. [...]
The range of a projectile is R when the angle of projection is 40. For the same velocity of projection and range, the other possible angle of projection is
10
Sep
The range of a projectile is R when the angle of projection is 40. For the same velocity of projection and range, the other possible angle of projection is the other possible angle of projection is The range of a projectile is R when the angle of projection is 40. For the same velocity of [...]