English

An object of mass 16 kg is moving with an acceleration of 3 m/s2. Calculate the applied force. If the same force is applied to an object of mass 24 kg, how much will be the acceleration?

Advertisements
Advertisements

Question

An object of mass 16 kg is moving with an acceleration of 3 m/s2. Calculate the applied force. If the same force is applied to an object of mass 24 kg, how much will be the acceleration?

Numerical
Advertisements

Solution

Given: m1 = 16 kg, a1 = 3 m/s2, m2 = 24 kg

Find: a2 = ?, F = ?

Applied force, F = m1a1 = 16 kg × 3 m/s2 = 48 N

∴ F = m2a2
∴ Acceleration, `"a"_2 = "F"/"m"_2`

`= (48 "N")/(24 "kg")`

= 2 m/s2

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Laws of Motion - Exercises [Page 17]

APPEARS IN

Balbharati Science and Technology [English] Standard 9 Maharashtra State
Chapter 1 Laws of Motion
Exercises | Q 7. b) | Page 17

RELATED QUESTIONS

Distinguish between acceleration and retardation.


Give one example of the following motion:

Uniform retardation


The unit of retardation is ____________


Figure shows the velocity-time graphs for two cars A and B moving in the same direction. Which car has greater acceleration? Give reasons to your answer.


Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.

(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .


A vehicle is accelerating on a straight road. Its velocity at any instant is 30 km/h. After 2 s, it is 33.6 km/h, and after further 2 s, it is 37.2 km/h. Find the acceleration of the vehicle in m s-2. Is the acceleration uniform?


If a body is moving with a constant velocity its acceleration is ______.


Draw velocity – time graph for the following situation:

When a body is moving with variable velocity, but uniform retardation.


Draw velocity – time graph for the following situation:

When a body is moving with variable velocity and variable acceleration.


Diagram is given below shows velocity – time graph of car P and Q, starting from the same place and in the same direction. Calculate the Acceleration of car P.


The acceleration of a body is 8.5 ms-2. What does this statement mean?


Can you use the relation [B1]?


Is it possible for an accelerating body to have constant speed?


The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Acceleration.


From the given v-t graph it can be inferred that an object is


Correct your friend who says that acceleration gives the idea of how fast the position changes.


When a body starts from rest, the acceleration of the body after 2 seconds in ______ of its displacement.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×