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A person of mass 70 kg jumps from a stationary helicopter with the parachute open. As he falls through 50 m height, he gains a speed fo 20 m/s. The work done by the viscious air drag is
03
Oct
A person of mass 70 kg jumps from a stationary helicopter with the parachute open. As he falls through 50 m height, he gains a speed fo 20 m/s. The work done by the viscious air drag is A person of mass 70 kg jumps from a stationary helicopter with the parachute open. As he [...]
In the above question, the average power delivered by gravity is
03
Oct
In the above question, the average power delivered by gravity is In the above question the average power delivered by gravity is October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A particle of mass m is projected at an angle alpha to the horizontal with an initial velocity u. The work done by gravity during the time it reaches its highest point is
03
Oct
A particle of mass m is projected at an angle alpha to the horizontal with an initial velocity u. The work done by gravity during the time it reaches its highest point is A particle of mass m is projected at an angle alpha to the horizontal with an initial velocity u. The work done [...]
When a person stands on a weighing balance, working on the principle of Hooke’s law, it shows a reading of 60 kg after a long time and the spring gets compressed by 2.5 cm.
03
Oct
When a person stands on a weighing balance, working on the principle of Hooke’s law, it shows a reading of 60 kg after a long time and the spring gets compressed by 2.5 cm. it shows a reading of 60 kg after a long time and the spring gets compressed by 2.5 cm. When a [...]
The system shown in Fig. 8.232 is released from rest with mass 2 kg in contact with the ground. Pulley and spring are massless, and friction is absent everywhere. The speed of 5 kg block
03
Oct
The system shown in Fig. 8.232 is released from rest with mass 2 kg in contact with the ground. Pulley and spring are massless, and friction is absent everywhere. The speed of 5 kg block and friction is absent everywhere. The speed of 5 kg block The system shown in Fig. 8.232 is released from [...]
A particle is released one by one from the top of two inclined rough surfaces of height h each. The angles of inclination of the two planes are 30 and 60, respectively. All other factors
03
Oct
A particle is released one by one from the top of two inclined rough surfaces of height h each. The angles of inclination of the two planes are 30 and 60, respectively. All other factors A particle is released one by one from the top of two inclined rough surfaces of height h each. The [...]
A massless platform is kept on a light elastic spring as shown in Fig. 8.231. When a particle of mass 0.1 kg is dropped on the pan from a height of 0.24 m, the particle strikes the pan, and the spring is
03
Oct
A massless platform is kept on a light elastic spring as shown in Fig. 8.231. When a particle of mass 0.1 kg is dropped on the pan from a height of 0.24 m, the particle strikes the pan, and the spring is A massless platform is kept on a light elastic spring as shown in [...]
A spring is compressed between two toy carts of masses m1 and m2. When the toy carts are released, the spring exerts on each toy cart equal and opposite forces for the same small time t.
03
Oct
A spring is compressed between two toy carts of masses m1 and m2. When the toy carts are released, the spring exerts on each toy cart equal and opposite forces for the same small time t. A spring is compressed between two toy carts of masses m1 and m2. When the toy carts are released [...]
Figure 8.230 shows a plot of the conservative force F in a unidimensional field. The plot representing the function corresponding to the potential energy (U) in the field is
03
Oct
Figure 8.230 shows a plot of the conservative force F in a unidimensional field. The plot representing the function corresponding to the potential energy (U) in the field is Figure 8.230 shows a plot of the conservative force F in a unidimensional field. The plot representing the function corresponding to the potential energy (U) in [...]
A block of 4 kg mass starts at rest and slides a distance d down a friction less incline (angle 30) where it runs into a spring of negligible mass. The block slides an additional 25 cm before it is
03
Oct
A block of 4 kg mass starts at rest and slides a distance d down a friction less incline (angle 30) where it runs into a spring of negligible mass. The block slides an additional 25 cm before it is A block of 4 kg mass starts at rest and slides a distance d down [...]