What is her velocity relative to ice surface

Reference no: EM1313111

Q1. The maximum distance from Earth to the Sun (at our aphelion) is 1.521 x 10^11 m and the distance of closest approach (at perihelion) is 1.471 x 10 ^11 m. Assume the Earth's orbital speed at perihelion is 3.027 x 10 ^ 4 m/s. (overlook the effect of the Moon and other planets.)

Q2. A 45 kg girl is standing on a 162 kg plank. The plank, originally at rest, is free to slide on a frozen lake that is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.56m/s relative to the plank.

(a) What is her velocity relative to ice surface?

(b) What is the velocity of the plank relative to ice surface?

Reference no: EM1313111

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