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When an object is shot from the bottom of a long smooth inclined plane kept at an angle 60∘ with horizontal, it can travel a distance x1 along the plane. But when the inclination is decreased to 30 degree and the same object is shot with the same velocity, it can travel x2 distance. Then x1 : x2 will be :
28
Aug
When an object is shot from the bottom of a long smooth inclined plane kept at an angle 60∘ with horizontal, it can travel a distance x1 along the plane. But when the inclination is decreased to 30 degree and the same object is shot with the same velocity, it can travel x2 distance. Then [...]
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it can travel a distance x1 along the plane. But when the inclination is decreased to 30 degree and the same object is shot with the same velocity ,
it can travel x2 distance. Then x1 : x2 will be : ,
When an object is shot from the bottom of a long smooth inclined plane kept at an angle 60∘ with horizontal ,
A spring of force constant k is cut into lengths of ratio 1:2:3. They are connected in series and the new force constant is k′. If they are connected in parallel and force constant is k′′. Then k′:k′′ is:
28
Aug
A spring of force constant k is cut into lengths of ratio 1:2:3. They are connected in series and the new force constant is k′. If they are connected in parallel and force constant is k′′. Then k′:k′′ is: The mass of lift is 2000 kg. When the tension in the supporting cable is 28000 [...]
A block of mass m is placed on a smooth inclined wedge ABC of inclination θ as shown in the figure. The wedge is given an acceleration ‘a’ towards the right. The relation between a and θ for the block to remain stationary on the wedge is?
28
Aug
A block of mass m is placed on a smooth inclined wedge ABC of inclination θ as shown in the figure. The wedge is given an acceleration ‘a’ towards the right. The relation between a and θ for the block to remain stationary on the wedge is? The mass of lift is 2000 kg. When [...]
The mass of lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is:
28
Aug
The mass of lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is: The mass of lift is 2000 kg. When the tension in the supporting cable is 28000 N then its acceleration is: August 28, 2020 Category: Chapter 5 - NLM , NEET Last 32 Years [...]
A force F = αi^ + 3j^ + 6k^ is acting at a point r = 2i^− 6j −12k^. The value of α for which angular momentum about origin is conserved is
28
Aug
A force F = αi^ + 3j^ + 6k^ is acting at a point r = 2i^− 6j −12k^. The value of α for which angular momentum about origin is conserved is A force F = αi^+3j^+6k^ is acting at a point r = 2i^−6j−12k^. The value of α for which angular momentum about origin [...]
A man is standing on a rail road car travelling with a constant speed of v = 10 m/s (Fig . 5.34). He wishes to throw a ball through a stationary hoop 5 m above the height of his hands in such a manner that the ball will move horizontally as it passes through the hoop. He throws the ball with a speed of 12.5 m/s w.r.t. himself. (a) What must be the vertical component of the initial velocity of the ball ? (b) How many seconds after he releases the ball will it pass through the hoop ? ( c) At what horizontal distance in front of the loop must he release the ball ?
28
Aug
A man is standing on a rail road car travelling with a constant speed of v = 10 m/s (Fig . 5.34). He wishes to throw a ball through a stationary hoop 5 m above the height of his hands in such a manner that the ball will move horizontally as it passes through the [...]
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(b) location of the point of striking of the food package ,
(c) velocity of the package at the time of striking the ground ,
A boy of height 1.5 m ,
A relief food package is dropped from a airplane which is moving horizontal with a velocity of 30 m s ^ −1 at a height h = 50 m. Find the (a) time of flight of the package ,
A shell is projected. from a gun with a muzzle velocity ,
and (d) displacement of the food package. ,
making move on a skateboard due east with velocity 4 m s^-1 ,
A block A of mass m1 rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block B of mass m2 is suspended. The coefficient of kinetic friction between the block and the table is μk. When the block A is sliding on the table, the tension in the string is:
28
Aug
A block A of mass m1 rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block B of mass m2 is suspended. The coefficient of kinetic friction between the block and the table is μk. When the [...]
Two blocks A and B of masses 3 m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively :
28
Aug
Two blocks A and B of masses 3 m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively : The force 'F' acting on [...]
A shell is projected. from a gun with a muzzle velocity, u. The gun is fitted with a trolley car at an angle θ as shown in Figure. If the trolley car is made to move with constant velocity v towards right. find the a. horizontal range of the shell relative to ground. b. horizontal range of the shell relative to a person travelling with trolley.
28
Aug
A shell is projected. from a gun with a muzzle velocity, u. The gun is fitted with a trolley car at an angle θ as shown in Figure. If the trolley car is made to move with constant velocity v towards right. find the a. horizontal range of the shell relative to ground. b. horizontal [...]
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(b) location of the point of striking of the food package ,
(c) velocity of the package at the time of striking the ground ,
A boy of height 1.5 m ,
A relief food package is dropped from a airplane which is moving horizontal with a velocity of 30 m s ^ −1 at a height h = 50 m. Find the (a) time of flight of the package ,
A shell is projected. from a gun with a muzzle velocity ,
and (d) displacement of the food package. ,
making move on a skateboard due east with velocity 4 m s^-1 ,
A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms^−1. The kinetic energy of the other mass is :
28
Aug
A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms^−1. The kinetic energy of the other mass is : A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 [...]