Question

An object is moving in the X-Y plane. At time t_1 the direction of its velocity, v and acceleration, a are: Direction of v is in the negative X direction Direction of a is in the positive Y direction At time t_1, the magnitude of the velocity of the object is _____. Select increasing, decreasing or constant. A. increasing B. decreasing C. constant At time t, the direction of the velocity of the object is _____. Select changing or not changing. A. changing B. not changing At time t_1, the direction of the net force acting on the object is _____. Select the coordinate direction of the net force A. positive X B. negative X C. positive Y D. negative Y E. the net force is zero

Answer 1

Given, At time ti ty >+21 - y magnitude of velocity of the object decreasing Ans: because acceleration direction, tries to align the body in ty Direction of the relocity off object at tı, changing velocity of object will be changing from to ty direction, in the direction of acceleration . Direction of force: positive y becallye E F = mai force is in the direction of acceleration - --