An astronaut is playing with a ping pong paddle and ball in zero gravity. The astronaut is 12 m from a flat wall and floating toward it at 4 m/s. A ping pong ball bounces back and forth between his paddle and the wall at 11 m/s. Eventually, the astronaut reaches the wall and traps the ball against it. Now treat the “bounce” somewhat realistically. If the bounce lasts 25ms, what is the average acceleration of the ball during this time? Give the magnitude only in m/s^2.

A spacecraft on its way to Mars has small rocket engines mounted on its hull; one on its left surface and one on its back surface. At a certain time, both engines turn on. The one on the left gives the spacecraft an acceleration component in the x direction of ax = 5.10 m/s², while the one on the back gives an acceleration component in the y direction of a = 7.30 m/s2. The engines turn off after firing for 670 s, at which point the spacecraft has velocity components of vx = 3515 m/s and vy = 4136 m/s. What was the magnitude and the direction of the spacecraft's initial velocity before the engines were turned on? Express the magnitude as m/s and the direction as an angle measured counterclockwise from the +x axis. magnitude direction m/s º counterclockwise from the +x-axis

A spaceship is traveling at a constant velocity of v ⃗ (t) = 250.0i ^ m/s when its rockets fire, giving it an acceleration of a ⃗ (t) = (3.0i ^ + 4.0k ^ )m/s2. What is its velocity 5 s after the rockets fire?

Any assistance with this physics problem would be great!

We know that the moon Callisto revolves around Jupiter during a period of 17.0 days.17.0 days. The average distance from the center of Jupiter to the center of Callisto is 1.95×109 m.1.95×109 m. What is the acceleration ?a of Callisto due to its motion around Jupiter?

The NEXT morning, you wake up in a strange room yet again, and this time you drop a ball from a height of 1.54 m above the floor. The ball hits the floor 0.392 s after your drop it. You guess that you must have been taken to an alien planet with gravity different from Earth s. What is this planet s g (that is, the magnitude of the acceleration due to gravity on this planet)?     10.0 m/s^2     15.0 m/s^2     30.0 m/s^2     20.0 m/s^2

You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 139m/s. How much time does it take for the impulse, which travels at a distance of 1.81m, to reach your brain?

A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 1.5 m from the edge of the table. The acceleration of gravity is 9.81 m/s 2 . What was the cat’s speed when it slid off the table? Answer in units of m/s.

I had a dream last night that I was chased by my teddy bear. In my dream, I was sleepwalking at a constant velocity of 60ft/sec. At exactly 4:00 am I noticed my teddy bear standing 1000 feet behind me. At that instant I began to accelerate at 10 ft/sec/sec and the teddy bear began to accerlate after me at 12 ft/sec/sec. At the moment the bear caught up to me, I woke from my dream in a cold sweat. To the nearest second, What time was this?

In 1948 United States Air Force pilot Gail halvorsen became known as the Berlin Candy Bomber when he began dropping candy bars and Bubblegum to the children of Berlin. If he was flying with a forward velocity of 100 meters per second at a low altitude of 1000 m how far from the Berlin Wall would he have to release the candy so that it would land in the city?