An object of weight W is in freefall close to the surface of Earth. The magnitude of the force that the object exerts on Earth is
A) greater than W.
B) less than W.
C) equal to W.
D) zero.
E) cannot be determined without knowing the relative masses of the object and the earth.
C
You might also like to view...
What is your latitude if the north celestial pole appears on your horizon?
A) 90° N B) 90° S C) 0° D) 45° N
An object 2.0 cm tall is placed 24. cm in front of a convex mirror whose focal length is 30. cm. (a) Where is the image formed? (b) How tall is it?
What will be an ideal response?
Which one of the following volumes is largest?
A) 500. cm3 B) liter C) quart D) cc E) cubic inch
A rock is thrown from ground level at some angle above the horizontal with a certain velocity. It reaches its highest point and starts falling down. What is the magnitude of the velocity of the rock right before it hits the ground?
A) It is equal to its initial vertical velocity. B) It is equal to its initial horizontal velocity. C) It is equal to the magnitude of its initial velocity. D) 0 E) Cannot be determined without additional information.