A certain freely falling object, released from rest, requires 1.25 s to travel the last 25.0 m before it hits the ground. (a) Find the velocity of the object when it is 25.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s (b) Find the total distance the object travels during the fall. m

Q: A motorist drives north for 37.0 minutes at 85.5 km/h and then stops for 15.0 minutes. He then…

A: Given: Initial Velocity of motorist in north direction (vn1) = 85.5 kmph. Initial Time of travel in…

Q: A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, and then returns…

A: Let the north pole be origin. The distance travelled by the bearcan be represented as:

Q: 2.9 •. A ball moves in a straight line (the x-axis). The graph in Fig. E2.9 shows this ball's…

A: Distance covered in first two second, d = (2m/s) ×( 2 s) = 4 m  Distance covered in last one second,…

Q: A parcel of air moving in a straight tube with a constant acceleration of 24.00 m/s2 has a velocity…

A: Given information:The acceleration of the air parcel of air (a) = 24 m/s2The velocity of the parcel…

Q: A drag racer starts from rest and accelerates at 3.8 m/s² for the entire distance of 10 * 102 m.…

A: Given data:  Initial velocity (v0) = 0 m/s Acceleration (a) = 3.8 m/s2 Distance traveled (Δx) =…

Q: The car stops at the traffic light. It then moves along a straight path so that its distance from…

A: Given that:x(t)=bt2-ct3b=2.40 m/s2c=0.120 m/s2

Q: If a ball is dropped from the top of the Empire State Building, 1224 ft above the ground, the…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A model rocket blasts off from the ground, rising straight upward with a constant acceleration that…

A:

Q: A student drove to the university from her home and noted that the odometer on her car increased by…

A: (a) The average speed of an object is the total distance traveled by the object divided by the…

Q: A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with…

A:

Q: An object is thrown upward at time t=0. After t seconds, its height is y=−4.9t 2 +2t+4.5 meters…

A:

Q: An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at…

A:

Q: 6. Jose walked 150m to the East for 5 minutes and 14 seconds, then walked 500m for 30 minutes 32…

A: Given data--- Distance  Time  150 m 5 min 14 sec 500 m 30 min 32 sec We have to…

Q: A motorist drives north for 40.0 minutes at 65.0 km/h and then stops for 15.0 minutes. He then…

A: Given value--- first distance = 40.0 minutes at 65.0 km/h. stop time = 15 minute. Second distance =…

Q: the rocket starts from rest at t=0 and travel straight up. it's height above the ground as a…

A:

Q: A rocket moves straight upward, starting from rest with an acceleration of +29.4 m/s^2. It runs out…

A:

Q: 2.1. A student throws a set of keys vertically upward to her sorority sister, who is in a window…

A:

Q: A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed of…

A:

Q: A sled starts from rest at the top of a hill and slides down with a constant acceleration. At some…

A:

Q: A tennis player tosses a tennis ball straight up and then catches it after 2.02 s at the same height…

A:

Q: A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with…

A: Taking sign of the upward direction of motion as positive and the downward direction of motion as…

Q: A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60…

A:

Q: A van covers 38.5 m in 7.67 s while uniformly slowing down to a final speed of 2.43 m/s. a. What is…

A: Given data: The distance covered is d=38.5 m. The time taken is t=7.67 s. The final speed is v=2.43…

Q: A car is stopped at a traffic light. It then travels along a straight road so that its distance from…

A:

Q: 2.2 A tennis ball is thrown straight up with an initial speed of 22.5 m/s. It is caught at the same…

A: Initial speed ( Vi ) = 22.5 m/s Final speed ( Vf ) = 0  Acceleration ( a ) = - g = -9.8 m/s2 Let , x…

Q: a. Ophelia leaves home to walk to the mall to shop. After walking 200m, she realizes that she does…

A: Ophelia remembers that she has doesn't have enough money after travelling 200 meters. She walks back…

Q: A car starts from rest and travels for 5.0s with a uniform accelenation of 15 m/s. The driver then…

A: Solution: Given that t = 5 s a = 15 m/s2 deceleraction = -30m/s2

Q: 13. A woman once fell 144 feet from the top of a building onto a metal ventilator box. She crushed…

A:

Q: The nearest grocery is 60 m, east from your house. You are walking at 1.2 m/s for 15.0 s toward the…

A:

Q: Determine the magnitude of the average acceleration of the car (in m/s2).   (b) Assume that the car…

A: Given  Vi = initial speed=0 m/s=vi Final speed=45.5 m/s =vf Time required =t=8.50 sec Average…

Q: (b) (a) (c) (e) (d) Time, s A ball is dropped from rest at a height of 120 m. +y is defined in the…

A: When an object, initially at rest, is dropped from a certain height, the motion of the object is…

Q: A model rocket blasts off from the ground, rising straight upward with a constant acceleration that…

A:

Q: A car is stopped at a traffic light. It then travels along a straight road such that its distance…

A: The distance formula of the car from the traffic light  is given by: x(t)=bt -ct2Where b = 20 m/s…

Q: A ball is thrown vertically upward with a speed of 68 m/s. a.) How high does it rise? b.) How long…

A: "Since you have posted a question with multiple subparts, we will solve first three subparts for…

Q: A rock is dropped off the side of a bridge and hits the water below 7.1 s later. (a) What was the…

A: Given data:  Initial velocity (V0) = 0 m/s Time (t) = 7.1 s

Q: A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with…

A: Taking sign of the upward direction of motion as positive and the downward direction of motion as…

Q: If a man ran at 3 m/s for 10 s and then -3 m/s for 10 s more.    a. What would be the total distance…

A: (a) The man travelled towards the distance is, The man travelled towards the distance in opposite…

Q: Position of a car with respect to time 40.0 30.0 10.0 B. D 6.0 10.0 16.0 22.0 Time (s) | a) What is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A car is stopped at a traffic light. It then travels along a straight road so that its distance from…

A: Given data: Distance, xt=bt2-ct3,b=2.40 m/s2,c=0.120 m/s3

Q: I am confused on p 2.68

A: Let us assume the truck is initially moving with a velocity u, when the brakes are applied then the…

Q: Erica throws a lawn dart upward from a height of 1 meter above the ground. The lawn dart reaches a…

A:

Q: A motorist drives north for 37.0 minutes at 98.0 km/h and then stops for 15.0 minutes. He then…

A: a. the distance traveled by the motorist in first interval is

Q: A car, initially traveling 24.0m/s speeds up at a rate of 5.00m/s² for 5.00s. Determine all unknowns…

A: Given data: Initial velocity (v0) = 24.0 m/s Acceleration (a) = 5.00 m/s2 Time (t) = 5.00 s…

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 –