Chapter 4 – Motion in a Plane
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The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t north is given by :
28
Aug
The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t north is given [...]
For angles of projection of a projectile at angles (45 degree − θ) and (45 degree + θ) , the horizontal ranges described by the projectile are in the ratio of:
28
Aug
For angles of projection of a projectile at angles (45 degree − θ) and (45 degree + θ) , the horizontal ranges described by the projectile are in the ratio of: For angles of projection of a projectile at angles (45 degree − θ) and (45 degree + θ) the horizontal ranges described by the [...]
A particle of mass m is projected with velocity v making an angle of 45 degree with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be :
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Aug
A particle of mass m is projected with velocity v making an angle of 45 degree with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be : A particle of mass m is projected with velocity v making an angle of 45 degree with [...]
A missile is fired for maximum range with an initial velocity of 20m/s. If g = 10m/s2, the range of the missile is
28
Aug
A missile is fired for maximum range with an initial velocity of 20m/s. If g = 10m/s2, the range of the missile is A missile is fired for maximum range with an initial velocity of 20m/s. If g = 10m/s2 the range of the missile is August 28, 2020 Category: Chapter 4 - Motion in [...]
The horizontal range and the maximum height of a projectile are equal . The angle of projection of the projectile is:
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Aug
The horizontal range and the maximum height of a projectile are equal . The angle of projection of the projectile is: The horizontal range and the maximum height of a projectile are equal . The angle of projection of the projectile is: August 28, 2020 Category: Chapter 4 - Motion in a Plane , NEET [...]
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)
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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
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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:
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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 = [...]