The velocity of a body, moving in a plane, changes from 3î to 3î + 7ĵ in 10s. What is the acceleration of the body? a) 0.7ĵ b) 0.7î c) 0.33î + 7ĵ d) 0.3î + 7ĵ
Q: A car drives at 25 m/s and speeds up to 30 m/s in 2 s. What is the acceleration of the car? +12.5…
A: We know Final Velocity (v) = Initial velocity (u) + Acceleration (a) * Time (t). This formula can be…
Q: A car starts from rest and travels at a constant acceleration of 600 kilometers per hour^2 along a…
A:
Q: v (m/s) [N] vs t (s) 15 10 -5 -10 10 15 20 25 30 t(s) INI (Sju) A
A:
Q: B. VERTICAL MOTION AT CONSTANT ACCELERATION (FREELY FALLING BODY) BALL 1: distance h trials (time in…
A: The value of tavg is given by tavg=t1+t2+t33 For a free falling object, the equation of distance…
Q: A car is moving with an acceleration of 3.2m/s² in a straight road. At this rate, how long does it…
A: How long does it take to accelerate from 82 kmph to 135 kmph.given,Initial speed(u)=82…
Q: During your car ride, you travel North at a speed of 10 km/hr for 30 minutes and then South at a…
A: Given data: Speed (V1) = 10 km/hr for time (t1) = 30 minutes, in North direction Speed (V2) = 10…
Q: A car travels from A to B at an average speed of 80 kph and back to A without loss of time at an…
A: Given Average speed of car when it move from A to B = 80 kph Average speed of car when it move from…
Q: Your grandfather had to walk to school uphill, both ways, but one way he went at 5.0 km/hr, and the…
A: Given: Speed of the walking to school from home v1 = 5.0 km/hr Speed of the walking to home from…
Q: 15. A car started from rest and reaches a speed of 18 m/s in 25 seconds. How many seconds would it…
A:
Q: During a time interval of two seconds, a particle changed its velocity from V = (2i -3j) m/s to V =…
A:
Q: A steamship parked in the port. It left the port with an acceleration of 0.8 for five seconds, then…
A:
Q: 3 1 1 3 4 5 t (s) By how much does the velocity change between t = 1 s and t = 5 s? It decreases by…
A: Here we will try to find change in velocity when time equals t1=1sec to t2 = 5sec Which will be =…
Q: Suppose h is 0.6 J s. In this case, what is the indeterminacy in the position of an object that has…
A: Given data- h=0.6 J.s Mass of object m=0.5 kg Speed of object v=20 m/s
Q: The acceleration of the body at the highest point on the graph is: a.Cannot be determined b. 0 m/s2…
A:
Q: A car traveled at a rate of 50 km/hr for 8 minutes and then at 25 km/hr for 7 min and finally at 20…
A: Given that-Speed in first Journey, s1=50 km/hrTime in first Journey, t1=8 minutes=860 hoursSpeed in…
Q: 6. Consider the velocity-time graph shown below. Which section has the smallest v (m/s) 4 3 لی 2 1…
A: The velocity is a vector quantity. It has both magnitude and direction. The negative value of…
Q: A woodpecker's brain is specially protected from large decelerations by tendon-like attachments…
A:
Q: An object moves the first half of the total distance with a speed of 2 m s-1. If the average speed…
A: x1=Distance traveled in first halfx2=Distance traveled in second halfx=Total distance…
Q: K02
A: Figure:- V-t graph We know that:- Displacement,…
Q: 4. A car travels 40 km at an average speed of 80 km/h and then travels 40 km at average speed of 40…
A: Given that, Total distance =80 km
Q: Match each of the following with the most appropriate answer. I Distance 16 m = and Time = 8 s…
A: Motion can be uniform or accelerated. Here the motion is uniform so we simply apply the formula…
Q: a=k(220-v) a0=220m/s v0=0 k=1 initial velocity is zero initial acceleration is 220m/s2, the…
A:
Q: An object moves along the positive x-axis with a speed of V, =6 m/s for 2 seconds, then moves along…
A:
Q: 2. A car accelerates from rest to reach a speed of 120 kph in 45s. What is the acceleration in meter…
A:
Q: In 2.5 s, a car increases its speed from 20.0m/s to 25.0m/s. What is the acceleration of the car? 05…
A:
Q: Refer to the table Position of the Car at Various Times Position t(s) x(m) A 30 В 10 52 C 20 38 30 E…
A:
Q: An airplane accelerates from rest to a speed of 125 m/s while traveling a distance of 500 m What is…
A: We know that:_ V2 = U2 + 2aS Where, V = final speed ; U = initial speed a = acceleration and S =…
Q: 3. The explorer took 60 s, 130 s, and 70 s to travel the 30 m, 20 /2 m, and 140 m north distances,…
A:
Q: A block, initially at ₁ = (31 +ĵ) m moves to r2 = (61 + 5j) m in 5 seconds. What is the magnitude of…
A: Initial position vector is Final position vector is Time is Find:The magnitude of average velocity.
Q: Imagine a toy car on a track with two hills (see Figure 1). As the car rolls down the track, its…
A: Let us suppose for convenience that the mass of the car is m=1 kg. We want to calculate the…
Q: 7. An object's velocity is v = t* – 3t² where t 2 0. a) At what time/times is the object at rest? b)…
A:
Q: 5 m O OO 5m 15 m 20 m 20.7 m e 25.7 m b С d -P
A: Radius of semicircular path R = 5 m Total Length of path L = πR + 10 m = π ×5 m + 10m…
Q: A walker covers a distaoce Fime of 42 mioules. what is the averoge of Hhe wolKer for this distonce…
A:
Q: If a car traveling at 60.0 km/h [S] stops in a time of 3.50 s, its acceleration is: A) 4.77…
A: Given that initial velocity of car (u) u=60 Kmh⇒u=60×100060×60 ms⇒u=16.66 ms time (t) t=3.50 s
Q: The average speed of a car is 35 km h. How far can it travel in 45 minutes? A 0.78 km B 129 km D 467…
A: Given data : Time=t Average speed=S Required : Distance
Q: which of the following speeds is the fastest? a. 4.2 ' 10^-2 km/s b. 1.4 ' 10^2 km/s c. 4.0 '…
A:
Q: a car has an acceleration of 4m/s2. Explain what this mean.
A: Given : Acceleration of the car, a = 4 m/s2 Required : Meaning of acceleration of the car.
Q: A block is suspended from a ceiling by a spring stretched 20 cm. When the block moves vertically ,…
A: Given:- y= -0.2 + 0.3sin(wt + θ) From the above equation it's clear that the amplitude of the shm…
Q: A car is driving along a circular track of diameter d = 0.75 km at a constant speed of v = 22 m/s.…
A:
Q: 7. Prashana runs a distance of 10.5 km in 32 minutes. What is her average running velocity? O 0.33…
A: Given data: The distance traveled is d=10.5 km. The time taken is t=32 min.
Q: 4. 5 6. 9 T(s) What is the object's average velocity between t = 0 and t = 3 s? 1 m/s 2 m/s 9 m/s 3…
A: Average velocity is the total displacement upon total time. For time upto 3s, we have to calculate…
The velocity of a body, moving in a plane, changes from 3î to 3î + 7ĵ in 10s. What is the acceleration of the body?
a) 0.7ĵ
b) 0.7î
c) 0.33î + 7ĵ
d) 0.3î + 7ĵ
Step by step
Solved in 2 steps