Physics
The velocity of a projectile at the initial point A is (2i^ + 3j^)m/s. Its velocity (in m/s) at point B is
28
Aug
The velocity of a projectile at the initial point A is (2i^ + 3j^)m/s. Its velocity (in m/s) at point B is The velocity of a projectile at the initial point A is (2i^ + 3j^)m/s. Its velocity (in m/s) at point B is August 28, 2020 Category: Chapter 4 - Motion in a Plane [...]
A projectile is fired from the surface of the earth with a velocity of 5ms^−1 and angle θ with the horizontal. Another projectile fired from another planet with a velocity of 3ms^−1 at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth.The value of the acceleration due to gravity on the planet is in ms^−2 is given (g = 9.8ms^−2)
28
Aug
A projectile is fired from the surface of the earth with a velocity of 5ms^−1 and angle θ with the horizontal. Another projectile fired from another planet with a velocity of 3ms^−1 at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth.The value of the [...]
A particle starting from the origin (0,0) moves in a straight line in the (x,y) plane. It’s coordinates at a later time are (3,3). The path of the particle makes with the x-axis an angle of
28
Aug
A particle starting from the origin (0,0) moves in a straight line in the (x,y) plane. It’s coordinates at a later time are (3,3). The path of the particle makes with the x-axis an angle of 0) moves in a straight line in the (x 3). The path of the particle makes with the x-axis [...]
A particle has an initial velocity of (3i^ + 4j^) and an acceleration of (0.4i^ + 0.3j^). Its speed after 10s is:
28
Aug
A particle has an initial velocity of (3i^ + 4j^) and an acceleration of (0.4i^ + 0.3j^). Its speed after 10s is: A particle has an initial velocity of (3i^ + 4j^) and an acceleration of (0.4i^ + 0.3j^). Its speed after 10s is: August 28, 2020 Category: Chapter 4 - Motion in a Plane [...]
A particle is moving such that its position coordinates (x, y) are (2 m, 3 m) at time t = 0, (6 m, 7 m) at time t = 2 s and (13 m, 14 m) at time t = 5 s. average velocity vector av (v ) from t = 0 to t = 5 s is
28
Aug
A particle is moving such that its position coordinates (x, y) are (2 m, 3 m) at time t = 0, (6 m, 7 m) at time t = 2 s and (13 m, 14 m) at time t = 5 s. average velocity vector av (v ) from t = 0 to t = [...]
A body is moving with velocity 30m/s towards east. after 10 seconds its velocity becomes 40m/s towards north. the average acceleration of the body is
28
Aug
A body is moving with velocity 30m/s towards east. after 10 seconds its velocity becomes 40m/s towards north. the average acceleration of the body is A body is moving with velocity 30m/s towards east. after 10 seconds its velocity becomes 40m/s towards north. the average acceleration of the body is August 28, 2020 Category: Chapter [...]
Two particles A and B are move with constant velocities v1 and v2. At the initial moment, their position vectors are r1 and r2 respectively. The condition for particles A and B for their collision is
28
Aug
Two particles A and B are move with constant velocities v1 and v2. At the initial moment, their position vectors are r1 and r2 respectively. The condition for particles A and B for their collision is their position vectors are r1 and r2 respectively. The condition for particles A and B for their collision is [...]
A ship A is moving Westwards with a speed of 10 km h^−1 and a ship B 100 km South of A is moving northwards with a speed of 10 km h^−1. The time after which the distance between them becomes shortest is
28
Aug
A ship A is moving Westwards with a speed of 10 km h^−1 and a ship B 100 km South of A is moving northwards with a speed of 10 km h^−1. The time after which the distance between them becomes shortest is The x and y coordinates of the particle at any time are [...]
The x and y coordinates of the particle at any time are x=5t − 2t^2 and y = 10t respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t = 2 s is:
28
Aug
The x and y coordinates of the particle at any time are x=5t − 2t^2 and y = 10t respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t = 2 s is: The x and y coordinates of the particle at any time are x=5t [...]
The displacement x of a particle varies with time t as x = ae^−αt + be^βt, Where a, b, α and β are positive constants. The velocity of the particle will:
27
Aug
The displacement x of a particle varies with time t as x = ae^−αt + be^βt, Where a, b, α and β are positive constants. The velocity of the particle will: B The displacement x of a particle varies with time t as x = ae^−αt + be^βt Where a α and β are positive [...]