A spring-loaded ballistic cart measuring 470 g is in contact with a second 640 g cart. The carts are initially at rest on a level surface. The spring is released and the lighter cart is observed to move at +0.83 m/s afterward. What is the velocity of the other cart?

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