Answered

1. If a cars speed increases from 18 m/s to 20 m/s in 15 seconds, its acceleration is how much :

2. What is the acceleration of a toy car that starts from rest & has a speed of 0.12 m/s after 0.1 seconds?

3. If an object moves at a constant speed and is accelerating, its ___ of travel must be changing:
A. Distance
B. Velocity
C. None

4. A soccerball rolls 12.6 meters in 4.5 seconds. Calculate the average speed.

5. A champion jumping frog can jump 2.5 meters every 4 seconds. What is the jumping frogs average speed?

6. An arctic tern can fly 85 km/h for every 24 hours straight. How far can it fly without landing?

Answer :

oyejam

Answer: Q1: 0.13m/s^2.

Q2: 1.2m/s^2

Q3: C

Q4: 2.8m/s

Q5: 0.63m/s

Q6: 2040km

Step-by-step explanation: acceleration a = (v-u)/t

Q1: a =(20-18)/15

a= 0.13m/s^2

Q2: a =(0.12-0)/0.1

a= 1.2m/s^2

Q3: None

Q4: V= distance/time

V= 12.6/4.5

V= 2.8m/s

Q5: v=2.5/4

v= 0.63m/s

Q6: distance d = v*t

d =85*24

d= 2040km

Other Questions