A rock of mass 51.2 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 15.7 N. What is the magnitude of the acceleration of the rock?

Q: A skier descends along a slope that has an incline of 15.0o . Assuming the slope is frictionless,…

A:

Q: 29. When a person parachutes from a plane, she travels at about 67 meters per second. When she pulls…

A: Ques: When a person parachutes from a plane, she travels at about 67 meters per second. When she…

Q: A body falls vertically from the height h = 45 metres with its initial velocity equal to zero. What…

A: Height from which the ball falls, h=45 m The initial velocity of the ball, u=0 m/s

Q: A train approaches a small town with a constant velocity of +28.6 m/s. The operator applies the…

A:

Q: A vehicle with a mass of 2.40 * 103 kg is driving at a speed of 25.0 m/s. When the driver uses the…

A: mass of vehicle is m = 2.40 x 103 kg speed of vehicle is u = 25.0 m/s final speed of the vehicle is…

Q: The pilot of a jet transport brings the engines to full takeoff power before releasing the brakes as…

A: Given, Acceleration, a=0.36ga=0.36×9.8a=3.528m/s2 Initially jet is at rest. u=0 Final velocity at…

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

A:

Q: The block has mass m = 6.8 kg, the ramp is at an angle of θ = 28 degrees, the coefficient of kinetic…

A: We have a mass of m=6.8 kg moving up a ramp at an angle 28o and the ramp has a coefficient of…

Q: A 7500 kg rocket blasts off vertically from the launch pad with a constant upward acceleration of…

A:

Q: You place a crate of mass 39.4 kg on a frictionless 3.67- meter-long incline. You release the crate…

A: Given,

Q: A 47.0-kg woman decides to take the elevator to the top of the 100.-m Space Needle in Seattle. On…

A: Given:  Mass of woman, m = 47.0 kg Height, H = 100 m Speed during return,  u = 4.00 m/s Stopping…

Q: A bullet is fired through a board 20.0 cm thick in such a way that the bullet's line of motion is…

A:

Q: A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped…

A: We have,Mass of the rock : m = 15 (kg)Time taken to reach on earth : t = 1.75 (sec)Time taken to…

Q: An object's position in a given coordinate system is described by the vector r = t^2 i - (3t + 3) j.…

A: Write the expression of the position vector, differentiate the expression with respect to time, and…

Q: magnitude of the average acceleration

A: Given data: Final speed v= 5.27 m/s Time t=1.14s

Q: In researching the forces that act on flying birds, scientists studied the motion of cockatiels'…

A:

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: Mars has an average acceleration due to gravity of 3.72 m/s2. Find the value of acceleration due to…

A: Planets have a considerable amount of mass and thus a considerable amount of gravity.   Any object…

Q: An F-18 Hornet fighter aircraft with a mass of 2.27x 104 kg is catapulted off an aircraft carrier.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question 9 The child plays a little longer and gives the car a new acceleration with components ar =…

A:

Q: A rocket sled having an initial speed of 107 mi/h is slowed by a channel of water. Assume that…

A:

Q: = 14.0N. Calculate the magnitude of A particle of mass 1.0 kg is subjected to a force Fi, = -3.0N…

A:

Q: A mass of 1.1 kg lies on a frictionless table, pulled by another mass of 3.8 kg under the influence…

A:

Q: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.310 m and then…

A:

Q: The gravitational force exerted on a baseball is 2.24 N down. A pitcher throws the ball horizontally…

A: Gravitational force on baseball (weight) = 2.24 N Horizontal velocity (v) = 17 msAccelerating time…

Q: You wake up in a strange room, and this time you drop a ball from a height of 1.74 m, and observe…

A:

Q: he pilot of a jet transport brings the engines to full takeoff power before releasing the brakes as…

A:

Q: The acceleration on a falling cricket ball is not constant due to air resistance.  The time…

A:

Q: Two ropes are attached to a 55 kg object. One has magnitude 65 N directed 59° clockwise from the…

A:

Q: While an elevator of mass 2620 kg moves upward, the tension in the cable is 48.9 kN. Assume the…

A: mass of elevator(m)=2620kg tension in the cable(T)=48.9 kN=48900N (ACTING IN UPWARD DIRECTION) g be…

Q: The acceleration on a falling tennis ball is not constant due to air resistance.  The time…

A:

Q: An object has a constant acceleration of a=3 m/s^2 without other forces intervening. A second layer…

A:

Q: An object of mass 5 kg is given an initial downward velocity of 50 m/sec and then allowed to fall…

A: The mass of the object: The initial downward velocity: The force due to air resistance: The initial…

Q: A 3.20 kg toy rocket is launched from its platform and reaches a height of 253 m after 3.70 s. If…

A: Mass (m)=3.20 kg Height (h)=253 mTotal time taken (T)=3.70 s Time taken to before running out of…

Q: Falcons are excellent fliers that can reach very high speeds by diving nearly straight down. To pull…

A: While free fall of the falcon the acceleration falcon is experiencing is the acceleration due to…

Q: What is the y component of the car's acceleration (in m/s^2)?

A: Second kinematic equation in y-direction is given by,                  Y = v0yt + 12ayt2     ----(1)…

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 –