Question

4. A model rocket is launched upward from rest with an upward acceleration of 11.0 ?Τ? 2 . The rocket booster propels the rocket for 6.00s before cutting out. The rocket then free-falls back to the ground. a. Solve for the maximum height reached by the rocket. (ans: 420m) b. Solve for the velocity of the rocket right before it strikes the ground. (ans: −90.7 ?Τ?) c. Solve for the total time the rocket was in the air before hitting the ground. (ans: 22.0s)

5. The world record long jump is 8.96m and was made by Mike Powel in 1991. During his jump Mike reaches a height of 0.785m. a. Solve for his initial velocity in the y-direction. (ans: 3.92m/s) b. Solve for his initial velocity in the x-direction. (ans: 11.2m/s) c. What is Mike Powel’s initial vector velocity referenced from the origin? (ans: 11.9m/s @ 19.3°)

6. A toy car is set loose too close to a table edge rolls off and falls to the floor. The toy car, initially at rest 0.330m from the table’s edge, undergoes an acceleration of 0.901m/s2 . a. Find the velocity of the toy car at the table’s edge. (ans: 0.771m/s) b. Solve for the distance the toy car will travel (Range) if the table is 1.24m tall. (ans: 0.388m)

7. The perfect shot to clear Theme 1: level 1-7 of Angry Birds is made with an initial velocity of 34.76m/s at 25.07°. The bird impacts on its decent 4.00m above its initial start point. a. Solve for the range of the Angry Bird. (ans: 92.9m) b. Solve for the max height reached by the Angry Bird. (ans: 11.06m)

Answer 1