Now, A = 0.4 and T = 3500 seconds. The freighter begins at rest and reaches the desired acceleration in time T. Now calculate and answer v(T) in m/s.

When we estimate distances from velocity data, it is sometimes necessary to use times  t0, t1, t2, t3, . . .  that are not equally spaced. We can still estimate distances using the time periods  Δti = ti − ti − 1.  For example, a space shuttle was launched on a mission, the purpose of which was to install a new motor in a satellite. The table provided gives the velocity data for the shuttle between liftoff and the jettisoning of the solid rocket boosters. Use these data to estimate the height, h, above Earth's surface of the space shuttle, 62 seconds after liftoff. (Give the upper approximation available from the data.)h =  ft Event Time (s) Velocity (ft/s) Launch 0     0 Begin roll maneuver 10     180 End roll maneuver 15     319 Throttle to 89% 20     442 Throttle to 67% 32     742 Throttle to 104% 59     1217 Maximum dynamic pressure 62     1430 Solid rocket booster separation 125     4052

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

Standing on the roof of a 95-m tall building, a girl holds her hand past the edge and throws a ball straight up at 8 m/s. The ball rises, then falls and strikes the ground. Considering "up" to be the positive direction, find the ball's velocity v when it is 40 m above the ground. Remember to include a "-" sign if the velocity is negative. V = m/s

On the planet Koozebane, if a pebble is dropped from height h, it falls to the surface in time t. Data for the acceleration = 4.100 [m/s^2]; the height = 4.900 [m]. What is the time? Submit Answer Tries 0/12

True or false: If an object accelerates from rest covering 2.0m in 1.0s in the forwards direction then, even though its average velocity is 2.0m/s its instantaneous velocity (or vf in your equations) will be 4.0m/s at t=1.0s and its initial velocity (vi in your equations) will be 0.0m/s at t=0

The NEXT morning, you wake up in a strange room yet again, and this time you drop a ball from a height of 2.15 m above the floor. The ball hits the floor 0.265 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)?     61.2 m/s^2     30.6 m/s^2     45.9 m/s^2     97.9 m/s^2

3. A vector of magnitude 3 CANNOT be added to a vector of magnitude 4 so that the magnitude of the resultant is: A zero B. 1 C. 3 D. 5 E.

A car is moving with a velocity v(t)= 100-t2   in units of ft/sec where t is in seconds when the brakes are applied at t = 0. How far will the car travel before it comes to a stop, and what is its average velocity during that time?

A skydiver falls d1 = 435 meters in t1 = 7.9 s before opening his parachute. After the chute opens, he falls an additional d2 = 825 meters in t2 = 136 s.  Calculate the skydiver’s average speed during the entire fall, vave, in meters per second