Acar drives on a circular track with a constant speed of 84 m/s. the track has a radius of 225 m. a. what is the centripetal acceleration of the car? (1 point) b. what is the acceleration of the car measured in g? (1 point) c. what speed would give the car an acceleration of 9.8 m/s2? (1 point)

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station