An astronaut lands on a newly discovered planet (that has a nice gravitational constant). He proceeds to jump out of the spacecraft and onto the planet's surface. His height above the ground (in feet) after t seconds is given by the function h (t) = -3t + 12t +36. A. How high off the ground is the astronaut after 1 second? B. What is the astronaut's velocity after 1 second? Is he traveling up or down? C. How fast is the astronaut traveling when he lands on the planet? D. When will the astronaut be at his highest point in the jump? E. Is the astronaut speeding up or slowing down after 2 seconds? At what rate?

Q: 4. A particle starts from the origin at t=0 with a velocity of (161 - 12j) m/s and moves in the xy…

A:

Q: Q1. A ball is launched with the speed of 20.0m/s at 30 angle from point A at the top of a 100m tall…

A:

Q: An astronaut on the moon throws a baseball upward. The astronaut is 6 ft, 6 in. tall, and the…

A:

Q: In 1780, in what is now referred to as “Brady’s Leap,” Captain Sam Brady of the U.S. Continental…

A:

Q: bullet is fired on level ground at 231 m/s, 60° above the horizontal.  Setup with a labeled…

A: Initial speed of the bullet u=231 m/s Fired angle θ=600 The bullet undergoes projectile motion.The…

Q: On the apollo 14 mission to the moon, astronaut Alan Shepard hit a golf club improvised from a tool.…

A: Initial speed (v) = 25 msLaunch angle (θ) = 26o

Q: a. How high will the ball rise than where it was hit? asnwer in m

A: We know height of the projectile         H=u2(sina)2 / (2*g)———-(1) where,H= maximum height…

Q: One of my questions got solved and helped me so much thank you! Here’s another one please. Two…

A:

Q: In the Soapbox Derby, young participants build nonmotorized cars with very lowfriction wheels. Cars…

A:

Q: 1c. A student stands at the edge of a cliff and throws a stone horizontally over the edge with a…

A:

Q: A level-flight bomber, flying at 400 ft/s, releases a bomb at an elevation of 7500ft. a. How much…

A: Velocity, u = 400 ft/s = 400/3.281 m/s = 121.92 m/s        (horizontally)  Velocity, u = 0…

Q: A person travels by car from one city to another with different constant speeds between pair of…

A: v1 = 80 km/hr , t1 = 30 min v2 = 100 km/hr , t2 = 12 min v3 = 40 km/hr , t3 = 45 min v4 = 0 km/hr ,…

Q: Setup with a labeled diagram. Calculate V is m/s and its horizontal Vx and vertical Vy components.…

A: Given data: The aeroplane takes off speed is: V=288 km/h The angle of takes off is: θ=23∘ The…

Q: Dwight decides to race around the perimeter of the Scranton business park in an effort to beat…

A: GIVEN : Average velocity =10 ft/s Time =5 minutes = 5×60=300 seconds He completes 4 laps in 5…

Q: b. What is the initial velocity of the rocket?

A:

Q: 3. A Tesla can accelerate from 0-60 MPH in 2.8 seconds, yielding an average acceleration of 21.4…

A: 3) Initial velocity (u) = 0 mph Final velocity (v) = 60 mph time taken = 2.8 seconds acceleration =…

Q: A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/sm/s,…

A: Given value--- A shot putter releases the shot some distance above the level ground with a velocity…

Q: At the equator, the radius of the Earth is approximately 6370km. A jet flies at a very low altitude…

A:

Q: We are standing on the top of a 1040 feet tall building and launch a small object upward. The…

A: Given data The height of the building is H = 1040 ft. The expression for the height of the object…

Q: An electron, in a picture tube of a TV set, travelling in a straight line, accelerates uniformly…

A: Given data:  Initial speed (v0) = 4.0 × 104 m/s Final speed (v) = 9.0 × 106 m/s Distance traveled…

Q: a. enter a symbolic expression for the average acceleration vector of the car during the given time…

A:

Q: A projectile is being launched from ground level with no air resistance. You want to avoid having it…

A: a) When the projectile is shot straight up The maximum height that the projectile should reach=h Let…

Projectile Motion