Sue and jenny kick a soccer ball at exactly
the same time. sue's foot exerts a force of
52.7 n to the north. jenny's foot exerts a
force of 91.8 n to the east.
a) what is the magnitude of the resultant
force on the ball?
answer in units of n.
005 (part 2 of 2) 10.0 points
b) what is the direction of the resultat force
(measured from east)?
answer in units of º

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart? 865 kg 320 kg 12.1 kg 3.12 kg