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The distance between 2 stations is 2 km. A train covers it in 1 minute. It accelerates and retards at the same rate of 0.2m/s². What is the maximum velocity attained by the train?: The distance between 2 stations is 2 km. A train covers it in 1 minute. It accelerates and retards at the same rate of 0.2m/s². What is the maximum velocity attained by the train?
A rod length of 80 cm pivotted freely at its centre and placed horizontally. A 20g ping pong ball with velocity 3 m/s collides and sticks to one end of the rod causing them to rotate. The moment of inertia of ball rod system is 0.2kgm^2. What is the angular velocity of the rod?
A body is projected with velocity of 20 m/s at 50 degrees to the horizontal.find he maximum height,time of flight and range of the projectile
A truck driver named gabriel went crazy and decided to ride off the edge of a cliff. Just at the edge, his velocity is horizontal with magnitude of 12.0m/s. Find his position, distance fromthe edge of the cliff. Find the velocity after .50 seconds.
Kyle pushes a 50 kg sack of rice across a level floor by horizontal force of 35.0 N against a frictional force of 12.0 N. He succeeded in moving the sack to a distance of 5.0 m. How much work is done by (a) Kyle, (b) frictional, and (c) force of gravity?
The octopus above is swimming along when it decelerates at 1.5ms-2 for 0.2s to a final speed of 3ms-1. What is the octopus's initial speed?
1. The force applied to the. System given in figure. 1 has a magnitude of. 50N. The blocks have. Masses M1 = 1kg and M2 = 2kg. The coefficient of kinetic friction between each block and surface is 0.150. Hist: Assume that g=9.8m/s2.
A) Draw a free body diagram for each block
B)Find the acceleration of the system.
4)A rocket of mass 2*10(4)kg accelerates at 200m/s2 for 30s from an initial speed of 5000m/s
a) How fast will be rocket travelling after the 30s?
b) How much kinetic energy has the rocket gained?
3) What work is done by a force F=(2i+4j)N, that moves a particle from a position ri=(3i+4j)m to a position rf=(-4i-2j)m?
2) If an electron in copper near the lowest possible temperature has a kinetic energy of 6.6*10^-19, what is the speed of the electron ?
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