julesdecent julesdecent

03-05-2024
Mathematics

Answered

A car on a straight track starts from rest and accelerates at a constant rate of 0.8 ms-2 for T
seconds. The car then maintains a constant speed for a further 30 seconds and then
decelerates to rest at a rate of 0.4 ms^-2

(b) Given that the total distance travelled is 960 metres, find

(i) the value of T
(ii) the average speed of the car.

Answer :

Other Questions

f (x) = - 5x g(x) =8x^2 - 5x - 9 Find (f • g)(x). A: -40x^4 +25x^3 + 45x^2 B: -40x^2 + 25x+ 45x C: -40x^3 +25x^2 + 45x D: -40x^3 - 5x - 9

(I attached a picture) A clock mounted in the wall in a classroom currently reads 11:00. The tip of the minute hand is 64 inches above the ground at 11:00. The

5. For RT shown below, point S is on RT, the length of RS is 10 cm, and the length of ST is 22 cm. What is the distance, in centimeters, between T and the midpo

Given the circle below with secant KJI and tangent HI, find the length of KJ. Round to the nearest tenth if necessary. H J K 29 21 I

Use the chart below to answer the questions: Country Population (1997 estimate) Area (square km) Indonesia 203,479,000 1,904,569 Denmark 5,248,000 42,077 Ghan

The standard form of an absolute value function is f(x)=a[x-h]+k Which of the following represents the vertex? (-k,h) (-h,k) (k,h) (h,k)

Wayne Arnsberg bought 240 shares of TRE stock. He paid a total of $28,656. He sold at $115.40 per share. He paid a $79.95 sales commission. Determine th

The magnitude of a vector d is 27 and its direction angle θ is 315°. Write the component form for d . Write each component in exact simplified form. d = ,

The graph shows a linear relationship between the height and years of a plant’s growth. Find the rate of change. Select all that apply. The rate of change of a

Find area of the circle 10cm a. Find the area of circle O. b. Find the area of AAOB. c. Find the area of sector AOB. d. Find the area of the shaded region.