An object is dropped from rest and falls freely with no air resistance. After 8 seconds, calculate its instantaneous speed.

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c