The <u>direction</u> of force will determine the <u>direction</u> of acceleration.
Answer:
1 x 10¹⁸cm
Explanation:
Given parameters:
Velocity of light = 300,000,000cm/s
Unknown:
Distance in centimeters = ?
Solution:
To solve this problem,
The velocity of light is 3 x 10⁸m/s
Velocity =
Distance = velocity x time = 3 x 10⁸m/s x 3.2 x 10⁷s
= 9.6 x 10¹⁵m
To cm;
100cm = 1m
Distance = 9.6 x 10¹⁵ x 10² = 9.6 x 10¹⁷cm = 1 x 10¹⁸cm
Answer:
The distance of the runners from the flag pole is 1.28 miles west of the flagpole
Explanation:
Both the runners will meet at the same time = t
Distance they will cover together = 7 + 1 = 8 miles
Let speed of runner A = v₁ = 5 mph
Let speed of runner B = v₂ = 2 mph
Distance = Speed × Time
v₁t+v₂t = 8
Distance covered by runner A = v₁t = 5× (8/7) = 5.71 miles
Distance of runner A from flagpole = 7-5.71 = 1.28
The distance of the runners from the flag pole is 1.28 miles west of the flagpole.
1) v=u+gt = -5 +10*2=15 m/s
2) r=ut+gt^2/2=-5*2+10*2^2/2=-10+20=10m
3) r of heli= vt =5*2=10m
So 10m by bag from answer number 2 plus additional 10m by helicopter equals 20m
Answer:
Her average speed is 5 miles per hour.
Explanation:
Average speed is the ratio of total distance travelled in particular time.
The park's pond is 0.5 miles around.
She can swim 20 laps, it means she can swim total = 20 × 0.5
= 10 miles.
Time taken by her to complete the track = 2 hour
Now, Average speed =
=
= 5 miles/hour.