A person hits a trampoline while moving downward with a speed of 9 m/s and rebounds a short time later with roughly the same speed upward. If the person is in contact with the trampoline for about 1.8 s, what are the magnitude and direction of the person’s average acceleration during this time interval? (Hint: You can ignore the effects due to gravity

Q: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed…

A:

Q: A hot-air balloon is rising upward with a constant speed of 2.93 m/s. When the balloon is 2.03 m…

A: given  initial speed of compass (u)=-2.93 m/s height(s)=2.03 m Acceleration due to gravity (g)=9.8…

Q: A particle leaves the origin with initial velocity v0= 12i + 14j m/s, undergoing constant…

A:

Q: Use the model s = -- 5gt+vot+S, with g= 32 fusec or g=9.8 m/sec. In a classic Seinfeld episode,…

A:

Q: total distance traveled,

A:

Q: The plane starts from rest (V=0 m/s) when t, =8.0 s. The plane accelerates down the runway and at…

A: Given, Initial velocity, u=0m/s Final velocity , v=110 km/h=110×100060×60=30.55 ms Initial time,…

Q: A particle moving in 1D has time-dependent velocity which is given by the quadratic function v(t) =…

A: a. the acceleration of the particle is

Q: A jet is flying due south at a constant speed of 460 miles per hour. It is flying with a direct…

A: Given: A jet is flying due south at a constant speed of 460 miles per hour. It is flying with a…

Q: A rescue helicopter is hovering over a person whose sailboat has capsized. One of the rescuers…

A:

Q: An ion's position vector is initially 7 = (-3,9 m )i + (-8.6 m )j + (-3.4 m )k, and 9.3 s later it…

A:

Q: bird is flying due east. Its distance from a tall building is given by x (t) = 29.0m + (12.9m/s)t −…

A:

Q: An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a…

A: Page 1

Q: A particle moving in the x-y plane has a velocity at time t = 5.25 s given by (3.9i+ 6.0j) m/s, and…

A: Write the given values with the suitable variables. t1=5.25 su=3.9i+6j m/st2=5.34 sv=4.05i+6.13j m/s…

Q: A rabbit is moving in the negative x-direction at 2.30 m/s when it spots a predator and accelerates…

A:

Q: A salamander of the genus Hydromantes captures prey by launching its tongue as a projectile: The…

A: Acceleration

Q: The figure shows the velocity of a particle as it travels along the x-axis. What is the directi…

A:

Q: A rocket is launched from the origin with an acceleration of 20.0 m/s2 at an angle of 30.0 degrees…

A:

Q: A student begins at rest and then walks north at a speed of v1 = 0.55 m/s. The student then turns…

A: Given: Speed v1 = 0.55 m/s along north direction Speed v2 = 0.53 m/s along south direction Taking…

Q: A projectile is launched horizontally at 15 m/s off of a 45 m high cliff and hits the horizontal…

A: Given data:  The projectile is launched horizontally from a cliff  Initial horizontal velocity (v0x)…

Q: velocity

A: Given: Acceleration of the object is given by the equation, A=(3t2+3t)i+(7t3+6)j At time = 0…

Q: A baseball is hit with a bat and, as a result, its direction is completely reversed and its final…

A: Given values: Contact time,∆t=0.60 s Magnitude of initial speed,vi=v Magnitude of final speed,vf=v2

Q: (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a…

A: Given data : Initial velocity u= 0 m/s, rest Final velocity v = 10.8 m/s Time (t) = 3.36 seconds

Q: A ball has an initial velocity of 1.50 m/s along the x-axis. Starting at t0=0, the ball receives an…

A: The velocity of an object accelerating is given by v= u+at, where u = initial velocity, a =…

Q: The figure shows the velocity of an object as it travels along the x-axis. What is the closest value…

A:

Q: A person on the top of a roof of a building (100 m) drops a ball. After 2s passed, a person who…

A: Given: The height of the building is 100 m. The person on the ground throws another ball after 2 s…

Q: A soccer ball is kicked from the ground with an initial speed of 17.5 m/s at an upward angle of…

A:

Q: The bacterium Escherichia coli (or E. coli) is a single-celled organism that lives in the gut of…

A: Given,             Zig-Zag constant speed, v = 20 μm/s             Other data in the graph

Q: The infamous chicken is dashing toward home plate with a speed of 5.7 m/s when he decides to hit the…

A: (a) The magnitude of acceleration is given by,

Q: Scenario: A toy rocket is launched straight upward from a pad 10 ft above ground level with an…

A:

Q: A wild horse starts from rest and runs in a straight line 29° north of west. After 33 s of running…

A: Given: Horse running in direction = 29° north of west Initial speed, v = 15 m/s time, t = 33 s

Q: A hot-air balloonist, rising vertically with a constant velocity of magnitude v = 5.00 m/s, releases…

A:

Q: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed…

A:

Q: On a horizontal road, a car is traveling West at a constant speed of 4.20 m/sm/s . After 30 ss , it…

A:

Q: An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a…

A:

Q: Nerve impulses in a human body travel at a speed of about 100 m/s. Suppose a woman accidentally…

A: Given data: Speed (v) = 100 m/s Height of the woman or distance between foot and brain d = 1.80 m…

Q: From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone…

A: Given data:  A person throws stone straight downward Initial velocity (u) = 9.9 m/s Time (t) = 0.48…

Q: A missile silo is used to launch test rockets vertically upward out of the silo, giving the rocket…

A:

Q: motorcycle starts at t = 0 from rest at x = 0 (the origin) and moves along a straight path (x-axis)…

A: Acceleration a1 = +2.8 m/s2 accelkeration in second case a2

Q: magnitude and direction of the bird’s acceleration

A:

Q: An elevator is initially moving upward at a speed of 13 m/s. The elevator experiences a constant…

A: Initial upwards speed of elevator (vo) = 13 m/sMagnitude of constant downwards acceleration = 3.5…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –