May, 16, 2018 robm 1.20 points) Please select the correct answer L. (S noints) what can you say about the velocity of a satellite in the orbit in two a) V> Va b) VA-V VAV d)There is no way to compare VA and V II. (5 points) For two colliding object which statement is wrong? Select all that applies. a) During the impact, the energy is conserved b) The linear momentum is conserved for a range of elastic to completely plastic collision c) The tangent velocity changes by the coefficient of restitution d) The energy loss depends on the coefficient of restitution. c) The linear momentum along the line of impact is conserved 1) The linear momentum in tangent direction is conserved. (10 points) Select all correct statements. a) Spring potential is always positive b) The Kinetic energy of rigid body is a result of translation of center of mass. c) The angular momentum about the center of mass is same as the origin. (Ho Ha) d) The Coriolis acceleration is a result of linear velocity in rotating frame. e) The Coriolis acceleration is in the same direction as angular velocity of the rotating frame.
Solution
1) (a) v A > v B
Orbital velocity is inversely proportional to the orbital radius.
At A, radius is less so speed is more than at B.
Therefore, v A > v B
.
1. May, 16, 2018 robm 1.20 points) Please select the correct answer L. (S noints) what can you say
about the velocity of a satellite in the orbit in two a) V> Va b) VA-V VAV d)There is no way to
compare VA and V II. (5 points) For two colliding object which statement is wrong? Select all
that applies. a) During the impact, the energy is conserved b) The linear momentum is conserved
for a range of elastic to completely plastic collision c) The tangent velocity changes by the
coefficient of restitution d) The energy loss depends on the coefficient of restitution. c) The
linear momentum along the line of impact is conserved 1) The linear momentum in tangent
direction is conserved. (10 points) Select all correct statements. a) Spring potential is always
positive b) The Kinetic energy of rigid body is a result of translation of center of mass. c) The
angular momentum about the center of mass is same as the origin. (Ho Ha) d) The Coriolis
acceleration is a result of linear velocity in rotating frame. e) The Coriolis acceleration is in the
same direction as angular velocity of the rotating frame.
Solution
1) (a) v A > v B
Orbital velocity is inversely proportional to the orbital radius.
At A, radius is less so speed is more than at B.
Therefore, v A > v B
