car slams it’s brakes for 13.6m with an acceleration magnitude of 18m/s^2. how much time does it take for the car to come to a complete stop?

Q: A 100-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped…

A: Given  Mass of rock m=100kg  Time taken by rock to reach ground on earth Te=1.75 s Time taken by…

Q: a test rocket is fired straight up from the rest. the net acceleration is 20 m/s upward and…

A: Velocity when the rocket ceases firing v=u+anett=anett    u=0=20 m/s24.0 s≈80 m/s

Q: A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every…

A: Given: Radius of circular track, r = 100 m. Time taken, t = 62.8.

Q: A rock is thrown down into the well with an initial downward speed 3.6of m/s. The rock hits the…

A: Let the initial speed of the rock is denotes by u and the time taken to hit the bottom is t. The boy…

Q: A roller coaster starts going down a hill from rest. It accelerates at 4.0 m/s^2. If it is on the…

A: Step 1Let a be the acceleration, t be the time taken and u be the initial velocity, then

Q: A car is traveling at 40 mph on a straight road. The driver applies the brakes for 3 sec, producing…

A: initial velocity u= 40mph =17.88m/s duration of brake applied t = 3sec deceleration a = -5.5ft/sec2=…

Q: A particular airplane with the acceleration of 1.98 m/s^2 will reach liftoff at a speed of 120 km/h.…

A: Time taken to reach lift-off speed is,

Q: You drop an object from rest (initial velocity = 0) from a height of 6.8 metres. What is the final…

A:

Q: A cyclist reaches the top of a hill at 5.0 m/s and travels downhill with a constant acceleration,…

A: Given: The initial speed of the cyclist at the top of the hill is 5 m/s. The final speed of the…

Q: A car accelerates at 1.50m/s^2 after 1.0 second from rest.How far is it from its starting point?

A: Given -             initial velocity of car u = 0 m/s             time taken  t = 1 sec…

Q: A jet fighter needs to be at the speed of 170mi/hr. What is the acceleration needed for the jet…

A:

Q: An astronaut drops a rock on a planet with an acceleration due to gravity of 3.2 m/s2 from a height…

A:

Q: The elevator starts on the first floor then accelerates 2.46 ft/ss for 5 sec and continues for 12…

A: Acceleration of the elevator a=2.46 ft/s2 Time for which the elevator is accelerated t1=5 s The…

Q: An object starts at rest.  It accelerates in the +x direction at 6.6m/s^2 for 5.2 sec.  How far does…

A: Given: Initial velocity (u) = 0 ......(object is at rest) Acceleration (a) = 6.6 m/s2 Time (t) = 5.2…

Q: How long did the ball take to return to the juggler’s hand?

A:

Q: A car is coasting backwards down hill at a speed of 3.0m/s when the driver gets the engine started.…

A: Average acceleration

Q: A volleyball starts from rest and accelerates with an acceleration of 0.405 m/s2 while moving down a…

A:

Q: A runner can maintain a constant acceleration of 1.1m/s^2 for 8.5 seconds. What distance could the…

A: The kinematic energy, s=ut+12at2s=12at2

Q: You throw a ball straight upward with constant acceleration. After 5.4 seconds the ball is at a…

A: let the initial velocity = u time = 5.4 sec height after 5.4 sec = 120 m

Q: The driver of a car slams on the brakes when he sees a tree blocking che road. The car slows…

A: Speed is the distance traveled per unit of time. Here, we calculate the given as follow;

Q: Nerve impulses in the human body travel at a speed of about 100 m/s. A 2.0 m tall man accidentally…

A: Given: The velocity of nerve impulse (v) = 100 m/s. Height of man (h) = 2.0 m.

Q: The acceleration of a particle moving along a straight line is a = (11 - 1.0s) m/s², where s is in…

A:

Q: A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 m…

A: Given : initial velocity of the boat = 0 m/s Acceleration of the boat = 3 ms-2 Time period = 8s

Q: A car is traveling at a speed of 30 m/s, a typical highway speed, on wet pavement. The driver sees…

A: Initially, speed of the car was, u = 30 m/s. The driver took t1 = 0.75 s to apply the brake Distance…

Q: n ant moves with a uniform acceleration. It has a velocity of 12.0 cm/s in the positive x direction…

A: The velocity is always changing; there is always nonzero acceleration and the problem says it is…

Q: A Boeing 757 takes off at 2/3 of a runway which is 1800.0 m long. Assume it starts from rest and…

A:

Q: A Honda Civic travels in a straight line along a road. Its distance x from a stop sign is given as a…

A:

Q: The position of an object is given by r(t)= -4.00m/s i +6.00t° m/s³ j. at t=2.0s, what is the…

A: r(t)= -4 i⇀ +6 t3j⇀ acceleration a is given by: a=d2rd t2

Q: A tennis ball is thrown straight upward with an initial speed of 15 m/s. What is the speed of the…

A:

Q: A speed skater moving to the left across frictionless ice at 7.8 m/s hits a 4.5-m-wide patch of…

A:

Q: f a beetle travels 5mm across a forest floor at a constant velo ow long does it take the beetle to…

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: What is the speed

A:

Q: A cheetah is hunting. Its prey runs for 3.50 s at a constant velocity of +7.50m/s. Starting from…

A:

Q: A model rocket is launched and accelerates upward at 20m/ s2 for 3 seconds before the jet shuts off.…

A:

Q: What distance

A: Given data;  Acceleration of a car whle going down in an inclined plane,  a= 4 cm/s2Distance will it…

Q: True or False. The acceleration of a ball as it rolls down a ramp is 4 m/s2. The ball is referred…

A: To calculate the distance covered by the ball, use Newton's equations of motion. Assume the ball…

Q: An express train passes through a station. It enters with an initial velocity of 22.0 m/s and…

A: We have to find the velocity of the train when nose leaves the station. Given that, Initial velocity…

Q: A speed skater increases his speed from 10m/s to 12.5m/s over a period of 3s while coming out of a…

A: Given data, Initial Speed (u)=10 m/s Final velocity (v)=12.5 m/s Time period ∆t= 3 s Radius of the…

Q: a soldier fires an anti-tank missile at a stationary tank 4850 meters distant. The missile is fired…

A:

Q: A car is traveling along a straight road at a velocity of +39.5 m/s when its engine cuts out. For…

A:

Q: An antelope moving with constant acceleration covers the distance 77.0 mm between two points in time…

A: The speed of the antelope at the second point, v2=14.2 m/s   The distance between the two points,…

Q: A ball was thrown vertically downward from a 50-m high building with an initial speed of 5m/s. What…

A:

Q: A pickup truck is traveling at 30.0 m/s. The driver of the truck applies the brakes and gives the…

A:

Q: A rocket is launched from the ground such that its net acceleration is 15 m/sec2 when the engine is…

A: Newton's equations of motion is used to find the height the rocket reaches in a given interval when…

Q: A cart is given an initial velocity of 8.1 m/s and experiences a contestant acceleration of 3.4m/s2.…

A: Given data:  Initial velocity (V0) = 8.1 m/s Acceleration (a) = 3.4 m/s2 Time (t) = 15 s Required:…

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 –