Lions, like most predators, are capable of very rapid starts. From rest, a lion can sustain an acceleration of 9.5 m/s2 for up to one second. How much time does it take a lion to go from rest to a typical recreational runner’s top speed of 10 mph?

Q: A ball is thrown straight down with an initial speed of 2.3 m/s from a height of 5.0 m. What is the…

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Q: June walks for 15 minutes at 0.165 km/ min but then she remembers she is suppose to meet her friend…

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Q: A rocket-powered sled moves along the track, eventually reaching a top speed of 230 m/s to the west.…

A: Given:-             Speed u =  230 m/s.    Final speed v = 0 m/s         Time taken t = 4.42 s…

Q: cheetah spots a gazelle 60.0 m away.  The cheetah accelerates at 7.5 m/s2 toward the gazelle.  The…

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Q: Starting from rest, a particle moves along a straight line with an acceleration of 4.0 m / s2. after…

A: Given : initial velocity of particle, u = 0 ( starting from the rest )             Acceleration of…

Q: Car A is moving with a constant velocity 6.02 m/s while Car B starts from rest and accelerates with…

A: Velocity of car A, uA = 6.02 m/s Velocity of car B, uB = 0 m/s Acceleration of car A, aA = 0 m/s²…

Q: The DR Horton Tower in Fort Worth is 400 m tall. Joe wants to set the world’s stair climbing record…

A: The expression from kinematics,

Q: A jet accelerates at a constant rate from rest, traveling 900 m in 3.0 s. What is the magnitude of…

A: The given values are,

Q: Light-rail passenger trains that provide transportation within and between cities speed up and slow…

A: Initial speed of the train = u = 6.0 m/sSpeed after 8 sec = v = 11 m/s To calculate The final speed…

Q: Sophie is a football player. Her teammate passes the ball to her with a speed of 15.0m/s. Sophie…

A: Given:         v1= 15 m/s         v2= 30 m/s        ∆t = 9 ms= 9×10-3s

Q: A Thomson’s gazelle can reach a speed of 13 m/s in 3.0 s. A lion can reach a speed of 9.5 m/s in 1.0…

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Q: What is his average velocity? 8. A tennis player moves in a straight-line path as shown in Figure…

A: Given that, The path of a tennis player is a straight line, and the distance varies with time is…

Q: A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s. What…

A: Given  A bird, accelerating from rest at a constant rate , experience a displacement of 28 m in 11…

Q: You normally drive on the freeway between two cities at an average  speed of 30 m/s (67 mph), and…

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Q: An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until…

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Q: A car is traveling at a steady 80 km/h in a 50 km/h zone. A police motorcycle takes off at the…

A: We have to determine the time elapses before the motorcycle is moving as fast as the car. We are…

Q: A rabbit is hopping along at an approximately constant speed of 5.1 m/s. The rabbit passes a…

A: Given data:  Constant Speed of the rabbit (v) = 5.1 m/s Initial velocity of cat (u) = 0 m/s…

Q: A motorcycle has a constant acceleration of 4.41 m/s2. Both the velocity and acceleration of the…

A: Given that,  The initial velocity of the motorcycle, vi=16.2 m/s The final velocity of the…

Q: At a stop light, a truck traveling at 15 m/s passes a car as it starts from rest. The truck travels…

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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: He spots a juicy one in the grass and takes off from our porch at 5.22 m/s. When he reaches the…

A: The speed of Boomer v =5.22 m/s The distance moved by Boomer d=8.16 m The time taken by Boomer is…

Q: Bob is cruising leisurely on his bike at 2.4 m/s when Jim passes him, traveling at a constant 10.2…

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Q: Car A is moving with a constant velocity 6.17 m/s while Car B starts from rest and accelerates with…

A: 4.2876 seconds before car B overtake car A. Your answer is time t=4.2876sec.

Q: You throw a ball straight up with an initial velocity of 15.9 m/s. On the way up it passes a tree…

A: Given: The initial velocity of ball is u=15.9 m/s During upward motion, ball passes a tree branch at…

Q: A dragster is at rest. When the light pole hits green, the dragster accelerates from the starting…

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Q: You're driving down the highway late one night at 20m/s when a deer steps onto the road 35m in front…

A: Given data:  Initial velocity (Vi) = 20 m/s Brakes applied after time (t) = 0.5 s Acceleration (a) =…

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

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Q: Bob is cruising leisurely on his bike at 2 m/s when Jim passe immediately begins accelerating at 2.2…

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Q: Jenny and Alyssa are members of the cross-country team. On a training run, Jenny starts off and runs…

A: To determine: The time taken by the Jenny to start by Alyssa to catch up with Jenny   Given: Speed…

Q: An 18-year-old runner can complete a 10.0-km course with an average speed of 4.51 m/s. A 50-year-old…

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

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Q: A jet accelerates at a constant rate from rest, traveling 900 m in 3.0 s. What is the magnitude of…

A: Given distance travelled s = 900m time taken t = 3.0 s we have to calculate acceleration

Q: A car is traveling at a steady 77 km/h in a 50 km/h zone. A police motorcycle takes off at the…

A: Given, A car is traveling at a steady 77 km/h in a 50 km/h zone.acceleration of the motorcycle, a =…

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 –