1. A ball is thrown straight up with an initial speed of 30 m/s. How much time does it take for the ball to reach the top of it's trajectory?
2. For 3.0s, Allison exerts a net force of 10.0 N on a 6.7-kg shopping cart that was initially at rest. Find the acceleration of the cart, and show that it moves a distance of 6.7m.
3. Suzie skydiver with her parachute has a mass of 50 kg. Before opening her chute, what force of air resistance will she encounter when she reaches terminal velocity?
Please show how you got the answers and your work
1. A ball is thrown straight up with an initial speed of 30 m/s. How much...
1.) A ball is thrown straight up with an initial speed of 15.715.7 m/s. At what height above its initial position will the ball have one‑half its initial speed? 2.) A child slides down a snow‑covered slope on a sled. At the top of the slope, her mother gives her a push to start her off with a speed of 1.101.10 m/s. The frictional force acting on the sled is one‑fifth of the combined weight of the child and the...
A ball at ground level is thrown straight up with a speed of 12 m/s. How long does it take the ball to reach the maximum height? 0.82 s 1.02 s 0.63s 1.22 s What is the maximum height reached by the ball? 5.10 m 3.26 m 7.34 m 1.96 m The vertical component of the acceleration of a projectile remains constant during the entire trajectory of the projectile. True False For a projectile launched horizontally, the horizontal component of...
A ball is thrown straight up with a speed of 30 m/s, and air resistance is negligible. A) how long does it take the ball to reach the maximum height? B) what is the maximum height reached by the ball? C) what is its speed after 4.2 seconds? Please show your work and equations used so I can learn to do problems like this. Thank you
Please do 1a 1b 1d and 1E and show work, thank you!
1.) A ball with mass 5.0 kg is launched upwards towards the east into the air with a speed of 15. m/s at an angle of 30 degrees to the ground. Note: For this question the motion is fully three-dimensional. Orient your axes so that the positive y-axis points north, the positive X-axis points east, and the positive z-axis points upwards (towards the sky. 1A.) If a gusting...