Calculate the instantaneous speed of a pencil in free fall 7.0 seconds after being dropped.

Q: What is the (i) vertical acceleration (ii) horizontal acceleration of a projectile at any instant?

A: i) Vertical acceleration component is,

Q: consider a grey squirrel falling on the ground. the coordinate system is positive downward. . the…

A: The free fall is the case of non uniform motion with constant acceleration. Newton gave 3 equations…

Q: A tennis ball is thrown vertically upward. It reaches the maximum height in 2.25 sec. What is the…

A: Given Data:- The ball reaches the maximum height at time t=2.25 s. Required:- Initial speed of the…

Q: When a ball is thrown straight up into the air, the acceleration of the ball is zero at the moment…

A: Given that:- A ball is thrown straight up in the air.

Q: A car travels 120 m in 5.0 s at constant velocity. If it then breakes and comes to a stop in 4.0 s…

A: Given data The distance traveled by car is: d = 120 m The time for which car travels at the constant…

Q: In the barrel of the gun, the ball is accelerated from rest to vbest (3.28m/s). From the one click…

A: The given values are, u=0v=vbest=3.28 m/ss=1 cm=0.01 m

Q: An object thrown vertically upward returns to its launching point in 4.0 s. What is The time taken…

A: Given, An object thrown vertically upward returns to its launching point in, t = 4.0 s

Q: A ball is tossed up into the air with an initial speed of 9.4. How long does it take to return to…

A: Speed of the coin is u = 9.4 m/sec. The coin is under constant acceleration of gravity g = 9.8 m/s2.…

Q: Give an example in which your speed could be while your acceleration is non zero?

A: Giving an example for the case in which speed could be zero but the acceleration is non- zero .

Q: a projectile is thrown vertically from ground. if the projectile reaches maximum distance of 45 m,…

A:

Q: Give an example for which velocity is zero but acceleration is not.

A: 14. There are many examples available in which velocity is zero but acceleration is not. The…

Q: Determine the acceleration of the box a: ? ,200N m= 21ky 40 2.

A: Given value--- mass = 29 kg. coefficient of kinetic friction = 0.5. We have to find---…

Q: A motorcycle starts from rest at point A and travels 300m along a straight horizontal track to point…

A: The equation of motions are  v = u + a t s = ut + 0.5 at2v2 =u2 + 2 a s  where, u is the initial…

Q: A ball is thrown directly downward with an initial speed of 8.40 m/s, from a height of 30.4 m. After…

A: v2=u2+2gd=8.40 m/s2+29.8 m/s230.4 m=10.9 m2/s2+595.8 m2/s2v=24.6 m/s

Q: Give an example where both the velocity and acceleration are negative

A: Velocity and acceleration

Q: a truck starts at origin from the rest at time t=0 with an accleration of Ax=(1.40 m/s^3)t.…

A: The expression for the velocity is,

Q: A ball is thrown directly downward with an initial speed of 7.25 m/s, from a height of 29.2 m. After…

A: d=ut+0.5gt2

Q: When one person launched a model rocket straight upwards, it will accelerate at 3.7g(g=9.81m/s^2)…

A: Given data: The initial acceleration of the rocket, a0=3.7g. The time interval during which the…

Q: A particle is initially at rest and begins to accelerate to the right as 17.6t-t^2  m/s. How far…

A:

Q: what is the acceleration of a projectile at the highest point?

A:

Q: A picture tosses baseball up along y axis , with an initial speed of 12 m/s.find long does the ball…

A: Initial speed is u = 12 m/s Final speed at maximum height is v Suppose that time taken to reach…

Q: A lead pellet is propelled upward vertically by an air rifle with an initial velocity of 12.2m/s.…

A: initial velocity of lead pellet (u) = 12.2 m/s

Q: . A rocket is launched vertically from rest on the ground, and its thrusts gives the rocket a…

A:

Q: A piece of stone thrown vertically upwards. It reaches the maximum height in 8 seconds.lf the…

A: Given data :                    Final velocity of stone     = V               Acceleration due to…

Q: Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00s, (c) 1.50s, and (d) 2.00s…

A: Initial velocity (u) = 15 m/s g = 9.8 m/s2 (in downwards direction)

Q: A baseball is hit by a batter with an initial velocity of 95 miles/hour at 45 degrees above the…

A: T=2usinθg

Q: An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 15.0 m if…

A: The maximum horizontal distance astronaut can jump is R=v02sin2θg Rearrange in terms of g…

Q: One ball is dropped at rest from a height of h = 75 m. At the same time, another ball is thrown…

A: Given:h=75 m v2=37 m/s

Q: You toss a ball straight upward with an initial speed of 1 m/s (neglect air resistance). Give the…

A:

Q: A car traveling at 30 m/s runs out of gas while traveling up a 5.0° slope. How far will it coast…

A:

Q: A ball thrown vertically from the Highway is managed 3.0 s later by a person on a balcony located 14…

A: Introduction: Projectile motion is the motion of the particle in two dimension. The motion of the…

Q: A slingshot launches a stone vertically with an initial velocity of 400 ft/s from an initial height…

A:

Q: A ball is thrown straight up in the air. For which situation are both the instantaneous velocity and…

A: When a ball is thrown straight up in the air with suppose velocity, V0, then  it's velocity at time…

Q: A Package is dropped fom a helicopter Bot is descending ata Constont speed Vo= 4.0 m/s a) After t-…

A: Given: The initial speed of the package is v0=4.0 m/s

Q: A ball is thrown directly downward with an initial speed of 8.10 m/s, from a height of 29.8 m. After…

A: Using kinematic equation, the expression for find final velocity of the ball is v=u2+2as Substitute…

Q: Jas is calculating a projectile motion problem for a snowball that is thrown horizontally, assuming…

A: Initial velocity = u ( in horizontal direction) Time (t) = 2 sec

Q: The initial speed of a howitzer is 0.20 km/s. If the Howitzer must hit a target that is at a…

A: Given: The initial speed of a howitzer = 0.20 km/s = 200 m/s the horizontal distance by which…

Q: -4t? + 900. Find the time t when the instantaneous velocity of the Suppose a ball is dropped from a…

A: Given: Height = 900feet S(t) = -4t2 + 900

Q: A rocket, initially at rest, is fired vertically with an upward acceleration of 10 m/s^2. At an…

A: A rocket starting from rest fired vertically with upward acceleration. When engine of rocket cuts…

Q: A runner runs around a circular track of length 400m with a constant speed in 96s starting at the…

A:

Q: Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00s, (c) 1.50s, and (d) 2.00s…

A:

Q: In a slap shot a hockey player accelerates the puck from a velocity of 7.00 m/s to 50.0 m/s in the…

A:

Q: Under what situation is an object considered to be "accelerating"?

A: Acceleration of an object is defined as rate of change of its velocity.  When an object experiences…

Q: A steel ball is thrown downward with an initial speed of 11.4 m/s from a height of 64.3 m above the…

A: The initial speed of the ball (Ub)=11.4m/s Height (H) from where it is thrown is = 64.3m The initial…

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.