Chapter 5 – Laws of Motion
Two blocks, of mass 1 kg and 2 kg respectively, are connected by a spring and kept on a frictionless table. The blocks are pulled apart, so that the spring is stretched, and released from rest. At a certain instant of time, the block of mass 1 kg, is found to be moving at a speed 2 m/s. What must be the speed of the other block at this instant
11
Sep
Two blocks, of mass 1 kg and 2 kg respectively, are connected by a spring and kept on a frictionless table. The blocks are pulled apart, so that the spring is stretched, and released from rest. At a certain instant of time, the block of mass 1 kg, is found to be moving at a [...]
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and released from rest. At a certain instant of time ,
are connected by a spring and kept on a frictionless table. The blocks are pulled apart ,
is found to be moving at a speed 2 m/s. What must be the speed of the other block at this instant ,
of mass 1 kg and 2 kg respectively ,
so that the spring is stretched ,
the block of mass 1 kg ,
Two blocks ,
A shell at rest at the origin explodes into three fragments of masses 1kg 2kg & m kg.The 1kg & 2kg pieces fly off with speed of 5m/s along x-axis & 6m/s along y-axis respectively.If the m kg piece flies off with speed of 6.5 m/s ,the total mass of shell must be?
11
Sep
A shell at rest at the origin explodes into three fragments of masses 1kg 2kg & m kg.The 1kg & 2kg pieces fly off with speed of 5m/s along x-axis & 6m/s along y-axis respectively.If the m kg piece flies off with speed of 6.5 m/s ,the total mass of shell must be? A shell [...]
A stationary bomb explodes into two parts of masses in the ratio of 1 : 3. If the heavier mass moves with a velocity 4 m/s. what is the velocity of lighter mass ?
11
Sep
A stationary bomb explodes into two parts of masses in the ratio of 1 : 3. If the heavier mass moves with a velocity 4 m/s. what is the velocity of lighter mass ? A stationary bomb explodes into two parts of masses in the ratio of 1 : 3. If the heavier mass moves [...]
An 80 kg man is riding on a small 40 kg cart at a speed of 4m/s.He jumps off the cart with zero horizontal speed.What is the resulting change in the speed of the cart?
11
Sep
An 80 kg man is riding on a small 40 kg cart at a speed of 4m/s.He jumps off the cart with zero horizontal speed.What is the resulting change in the speed of the cart? An 80 kg man is riding on a small 40 kg cart at a speed of 4m/s.He jumps off the [...]
A shell of mass 10 kg is moving with a velocity of 10ms^−1 when it blasts and forms two parts of mass 9 kg and 1 kg respectively. If the 1st mass is stationary, the velocity of the 2nd mass is:
11
Sep
A shell of mass 10 kg is moving with a velocity of 10ms^−1 when it blasts and forms two parts of mass 9 kg and 1 kg respectively. If the 1st mass is stationary, the velocity of the 2nd mass is: A shell of mass 10 kg is moving with a velocity of 10ms^−1 when [...]
Two balls, having linear momenta p1=pi^ and p2=−pi^, undergo a collision in free space. There in son external force acting on the ball. Let p1 and p2 be their final momenta. Which of the following option(s) is (are) NOT ALLOWED for any non-zero value of p,a1,a2,b1,b2,c1 and c2
11
Sep
Two balls, having linear momenta p1=pi^ and p2=−pi^, undergo a collision in free space. There in son external force acting on the ball. Let p1 and p2 be their final momenta. Which of the following option(s) is (are) NOT ALLOWED for any non-zero value of p,a1,a2,b1,b2,c1 and c2 6N and 8N. The resultant acceleration of [...]
A stationary body of mass 3 kg explodes into three equal pieces. Two of the pieces fly off in two mutually perpendicular directions, One with a velocity of 3 i m/s and the other with a velocity of 4 j m/s. If the explosion takes place in 10^−4s, the average force acting on the third piece in newtons is :
11
Sep
A stationary body of mass 3 kg explodes into three equal pieces. Two of the pieces fly off in two mutually perpendicular directions, One with a velocity of 3 i m/s and the other with a velocity of 4 j m/s. If the explosion takes place in 10^−4s, the average force acting on the third [...]
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A stationary body of mass 3 kg explodes into three equal pieces. Two of the pieces fly off in two mutually perpendicular directions ,
One with a velocity of 3 i m/s and the other with a velocity of 4 j m/s. If the explosion takes place in 10^−4s ,
the average force acting on the third piece in newtons is : ,
A shell of mass 5M, acted upon by no external force and initially at rest, bursts into three fragments of masses M, 2M and 2M respectively. The first two fragments move in opposite directions with velocities of magnitudes 2v and v respectively. The third fragment will:
11
Sep
A shell of mass 5M, acted upon by no external force and initially at rest, bursts into three fragments of masses M, 2M and 2M respectively. The first two fragments move in opposite directions with velocities of magnitudes 2v and v respectively. The third fragment will: 2M and 2M respectively. The first two fragments move [...]
Two masses of 5 kg and 3 kg are suspended with help of massless inextensible strings as shown in figure. Calculate T1 and T2 when whole system is going upwards with acceleration = 2m/s^2 (use g = 9.8 ms^−2).
11
Sep
Two masses of 5 kg and 3 kg are suspended with help of massless inextensible strings as shown in figure. Calculate T1 and T2 when whole system is going upwards with acceleration = 2m/s^2 (use g = 9.8 ms^−2). 6N and 8N. The resultant acceleration of the body is A body of mass 10 kg [...]
A body of mass 10 kg is acted upon by two perpendicular forces, 6N and 8N. The resultant acceleration of the body is
11
Sep
A body of mass 10 kg is acted upon by two perpendicular forces, 6N and 8N. The resultant acceleration of the body is 6N and 8N. The resultant acceleration of the body is A body of mass 10 kg is acted upon by two perpendicular forces September 11, 2020 Category: Chapter 5 - Laws of [...]