elena is playing catch with her dog, rocky. she tosses a tennis ball, and rocky catches it in the air. then…
elena is playing catch with her dog, rocky. she tosses a tennis ball, and rocky catches it in the air. then, rocky brings the ball back to elena. which graph could show the tennis balls height above the ground over time? height (ft.) time (sec.) height (ft.) time (sec.) height (ft.) time (sec.) height (ft.) time (sec.)
Answer
Explanation:
Step1: Analyze ball - throwing motion
When Elena tosses the ball, its height first increases as it moves upwards against gravity. Then, due to gravity, it reaches a maximum height and starts to fall. Rocky catches it in the air, so the ball doesn't hit the ground. After being caught, the ball is at a non - zero height as Rocky brings it back to Elena.
Step2: Evaluate each graph
- The first graph shows the ball rising and then staying at a constant height without falling, which is not correct as gravity acts on the ball.
- The second graph shows the ball rising, falling to the ground, which is incorrect as Rocky catches it in the air.
- The third graph shows the ball rising, falling to the ground, which is incorrect as Rocky catches it in the air.
- The fourth graph shows the ball rising, reaching a maximum height, falling until it is caught (where the height becomes constant as Rocky holds it) and then being brought back at that non - zero height.