An object moving in circular motion has a mass of 15 kg and a centripetal acceleration of 10 m/s2. what is the centripetal force acting on the object?

a
150 n
b
15 n
c
0 n
d
1.5 n
question 2 (1 point)
a 3 kg object is moving in circular motion at a speed of 4 m/s. the radius of the circle is 4 m. what is the centripetal force acting on the object?

a
0 n
b
24 n
c
12 n
d
48 n
question 3 (1 point)
an object is moving in circular motion. the centripetal acceleration of the object is 10 m/s^2. if the radius of the circle is 10 m, what is the speed, v, of the object?

a
0 m/s
b
10 m/s
c
5 m/s
d
100 m/s
question 4 (1 point)
a race car is driving around a circular track that has a radius of 10 m. if the speed of the car is 5 m/s, what is the centripetal acceleration of the car?

a
2.5 m/s^2
b
5 m/s^2
c
10 m/s^2
d
0 m/s^2
question 5 (1 point)
an object is moving clockwise in circular motion, as shown in the picture below. when the object is at the position shown in the picture, the centripetal force

a
an arrow pointing left.
b
an arrow pointing upward.
c
an arrow pointing downward.
d
an arrow pointing right.
question 6 (1 point)
a ball is spun clockwise in a circular path, as shown below. when the ball is at the position in the picture, the net force acting on the

a
is an arrow pointing up.
b
is an arrow pointing down.
c
is an arrow pointing left.
d
is 0.
question 7 (1 point)
a ball is spun counter-clockwise, as shown in the picture below. when the ball is at the position in the picture, the velocity

a
0
b
an arrow pointing left.
c
an arrow pointing downward.
d
an arrow pointing upward.
question 8 (1 point)
if the speed of an object in circular motion is tripled, what change will occur in the centripetal force?

a
the centripetal force will be 9x greater than it was.
b
the centripetal force will be the same.
c
the centripetal force will be 3x greater.
d
the centripetal force will be 1/9 as much as it was.
question 9 (1 point)
if the speed of an object in circular motion is doubled, what change occurs in the centripetal force?

a
the centripetal force is the same.
b
the centripetal force is 2x bigger.
c
the centripetal force is 4x bigger.
d
the centripetal force is 4x smaller.
question 10 (1 point)
if the radius of an object in circular motion is doubled, what change will occur in the centripetal force?

a
the centripetal force will be 4x bigger.
b
the centripetal force will be the same.
c
the centripetal force will be 1/2 as big as it was.
d
the centripetal force will be 2x bigger.