1. when a particle moves in a circle with constant speed, its acceleration is
a) constantly increasing.
constant in direction.
c) zero.
d) constant in magnitude.
e) constant in magnitude and direction.

the answer is 46 mls because when you add the speed per second it increses the speed

do you have a formula possibly

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

i think the answer is tomato juice? not entirely sure though