Is it possible for speed to be constant while acceleration is not zero? Give an example of such a situation.

Q: Determine the maximum speed for each car if the normal acceleration is limited to 0.69g. The roadway…

A: The expression for the normal acceleration is an=v2r Here, v is the maximum speed, r is the radius.…

Q: The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a…

A: Given,

Q: It is physically impossible for an object to have a negative acceleration and yet be speeding up.

A:

Q: Give an example in which your speed could be while your acceleration is non zero?

A: Giving an example for the case in which speed could be zero but the acceleration is non- zero .

Q: If the final velocity of an object is less than its initial velocity, then a. its acceleration will…

A: To find: If the final velocity is less than the initial velocity

Q: A rock is falling from the top of a cliff. Which of the following statements is true? a. Speed of…

A: To determine  Correct statement

Q: Give an example for which velocity is zero but acceleration is not.

A: 14. There are many examples available in which velocity is zero but acceleration is not. The…

Q: With respect to the motion of a car, describe a situation in which the car has zero speed but has a…

A: With respect to the motion of a car, describe a situation in which the car has zero speed but has a…

Q: For an object in free fall a) the distance increases uniformly with time b) the acceleration…

A: An object under free fall is under the influence of gravity alone. The acceleration of the object…

Q: Can an object reverse its direction of travel while maintaining a constant acceleration? If so, give…

A: Direction of travel is same as the direction of velocity.Yeah, the direction of travel can change…

Q: The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint a…

A: Please see the answer below

Q: Give an example where both the velocity and acceleration are negative

A: Velocity and acceleration

Q: An object, starting from rest, moves with constant acceleration of 4 m/s2. After 8 s, its speed is O…

A: From equation of motion we know that , V= u + ft, where f= constant acceleration.

Q: zero acceleration

A:

Q: . In which of the following cases does a velocity and a positive acceleration? A in the (а) (b)-x…

A: Negative velocity means car must be traveling along -x axis  Acceleration is defined as rate of…

Q: As a car's speed increases its velocity and acceleration might be: CHoices: ositive and zero,…

A: Required : The speed and acceleration of the car.

Q: A rock is thrown straight downward from a tree limb with an initial velocity v0. The rock has…

A:

Q: In a rally a road is designed so that the minimum acceleration for a car to jump is 5.7 m/s². The…

A: Solution: Given that a = 5.7 m/s2 v = 74.1 m/s

Q: In which one of the following situations does the car have a westward acceleration?   The car…

A:

Q: The runway of an airport in Oman has been designed such that the lowest acceleration for a plane to…

A:

Q: Cite some situations from your everyday experience of constant acceleration.

A: Acceleration is the rate of change of velocity.

Q: An apple is thrown upwards. Which statement related to its acceleration is correct? Neglec Its…

A: The correct option is  Its acceleration is constant.

Q: During a test a rocket travels upward at 75 m/s, and when it is 40 m from the ground its engine…

A:

Q: Small frogs that are good jumpers are capable of remarkable accelerations. One species reaches a…

A:

Q: Give an example in which velocity is zero yet acceleration is not.

A: when we throw an object vertically upward under gravity then object has zero velocity at maximum…

Q: If, for instance, the speed of an object is zero, then A) Its acceleration is negative B) Its…

A: Acceleration can be defined as the ratio of change in velocity to time. i.e,   acceleration =…

Q: It is the limit of the average velocity as the time interval approaches zero. a. Instantaneous…

A: Instanenuous velocity is the average velocity of an object when elapsed time approaches to zero.

Q: A race car increases its speed from 80 mi/h to 160 mi/h in a distance of 100m. Find (i) the…

A: Given data: The initial speed is u=80 mi/h. The final speed is v=160 mi/h. The distance covered is…

Q: In which one of the following situations does the car have a westward acceleration? (A) The car…

A:

Q: Can a car that is traveling eastward velocity simultaneously have a westward acceleration? Give an…

A: Required :  Can a car that is travelling eastward velocity simultaneously have a westward…

Q: A football is kicked at an angle 25 degrees with respect to the x-axis. The ball hits the ground…

A: Answer  ------ (a) The acceleration is zero m/s2 at all time. Because there is no acceleration along…

Q: An object will slow down when

A: An object will slow down when it's acceleration is negative i.e it decelerates,  When it's speed…

Q: If one object has a greater speed than a second object, does the first necessarily have a greater…

A: As we know that , Acceleration = a = v/tAs ,it is clear from the equation that acceleration depends…

Q: false? and why?

A:

Q: A ball is thrown downward in the absence of air resistance. After it has been released, which…

A:

Q: At t=0, a car registers at 30 miles/hr. Forty seconds later, the car’s velocity is now at 50…

A: Given - Initial velocity of car , u = 30 miles/hr Final velocity of car , v = 50 miles/ hr Time…

Q: A car comes to a complete stop from an initial speed of 60 mi / hr in a distance of 200 ft. With the…

A: Given: Case 1: Initial speed u=60 mi/hr=601.467ft/s=88.02 ft/s, Final speed v=0 ft/s, Stopping…

Q: In which of the following cases does a car have a negative velocity and a positive acceleration? A…

A: Velocity and acceleration are vector quantities that is they both have magnitude as well as…

Q: The average velocity and the instantaneous velocity of an object will be the same if

A:

Q: If an object momentarily has zero velocity, is its acceleration zero?

A: No ,  If the object movement that really has zero velocity then its Acceleration is not zero.  The…

Q: An apple is falling from an apple tree. Which of the following statements is true? a. Speed and…

A: Given data:  Apple is falling from tree Initial velocity is zero.

Q: Question 14 In which one of the following situations does the car have a eastward acceleration? A…

A: According to question we need to find correct option.

Q: If the brakes on a car can give the car a constant negative acceleration 2k m/s^2 where k is…

A:

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.