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 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 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: 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 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: 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: 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: 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: 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: 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 –